observablehq.com Open in urlscan Pro
2606:4700:10::6816:14dc Public Scan

Go To Rescan
Add Verdict Report

URL:
https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Submission: On May 08 via manual (May 8th 2023, 8:24:01 am UTC) from GB — Scanned from GB

Summary HTTP 128 Redirects Links 4 Behaviour Indicators

Summary

This website contacted 15 IPs in 4 countries across 11 domains to perform 128 HTTP transactions. The main IP is 2606:4700:10::6816:14dc, located in United States and belongs to CLOUDFLARENET, US. The main domain is observablehq.com. The Cisco Umbrella rank of the primary domain is 209440.
TLS certificate: Issued by Cloudflare Inc ECC CA-3 on March 5th 2023. Valid for: a year.

This is the only time observablehq.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
79	2606:4700:10:... 2606:4700:10::6816:14dc	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2a00:1450:400... 2a00:1450:4001:830::200e	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:812::2008	15169 (GOOGLE) (GOOGLE)
2	2a00:1450:400... 2a00:1450:4001:829::200a	15169 (GOOGLE) (GOOGLE)
4	2a00:1450:400... 2a00:1450:4001:806::2003	15169 (GOOGLE) (GOOGLE)
1	34.120.195.249 34.120.195.249	396982 (GOOGLE-CL...) (GOOGLE-CLOUD-PLATFORM)
1	2600:9000:225... 2600:9000:2250:8200:3:3696:5cc0:93a1	16509 (AMAZON-02) (AMAZON-02)
11	2600:9000:21f... 2600:9000:21f3:8c00:10:f2df:eb80:93a1	16509 (AMAZON-02) (AMAZON-02)
10	2600:9000:249... 2600:9000:2490:9200:1c:df24:ee80:93a1	16509 (AMAZON-02) (AMAZON-02)
1	2a00:1450:400... 2a00:1450:400c:c09::9c	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:831::2004	15169 (GOOGLE) (GOOGLE)
3	2606:4700:303... 2606:4700:3037::6815:5381	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2a04:4e42:400... 2a04:4e42:400::485	54113 (FASTLY) (FASTLY)
10	1.1.1.1 1.1.1.1	13335 (CLOUDFLAR...) (CLOUDFLARENET)
128	15

79 2606:4700:10::6816:14dc (United States)

ASN13335 (CLOUDFLARENET, US)

observablehq.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
api.observablehq.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
events.observablehq.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:830::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:812::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.googletagmanager.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:829::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

fonts.googleapis.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2a00:1450:4001:806::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

fonts.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 34.120.195.249 (Kansas City, United States)

ASN396982 (GOOGLE-CLOUD-PLATFORM, US)
PTR: 249.195.120.34.bc.googleusercontent.com

o299802.ingest.sentry.io	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2600:9000:2250:8200:3:3696:5cc0:93a1 (United States)

ASN16509 (AMAZON-02, US)

panningforbacon.static.observableusercontent.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

11 2600:9000:21f3:8c00:10:f2df:eb80:93a1 (United States)

ASN16509 (AMAZON-02, US)

avatars.observableusercontent.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

10 2600:9000:2490:9200:1c:df24:ee80:93a1 (United States)

ASN16509 (AMAZON-02, US)

static.observableusercontent.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:400c:c09::9c (Brussels, Belgium)

ASN15169 (GOOGLE, US)

stats.g.doubleclick.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:831::2004 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 2606:4700:3037::6815:5381 (United States)

ASN13335 (CLOUDFLARENET, US)

cdn.observableusercontent.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a04:4e42:400::485 (United States)

ASN54113 (FASTLY, US)

cdn.jsdelivr.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

10 1.1.1.1 (None, )

ASN13335 (CLOUDFLARENET, US)
PTR: one.one.one.one

1.1.1.1	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
79	observablehq.com observablehq.com — Cisco Umbrella Rank: 209440 api.observablehq.com — Cisco Umbrella Rank: 244795 events.observablehq.com — Cisco Umbrella Rank: 796682	2 MB
25	observableusercontent.com panningforbacon.static.observableusercontent.com avatars.observableusercontent.com — Cisco Umbrella Rank: 805585 static.observableusercontent.com cdn.observableusercontent.com — Cisco Umbrella Rank: 934055	341 KB
4	gstatic.com fonts.gstatic.com	81 KB
2	googleapis.com fonts.googleapis.com — Cisco Umbrella Rank: 37	2 KB
2	google-analytics.com www.google-analytics.com — Cisco Umbrella Rank: 30	21 KB
1	jsdelivr.net cdn.jsdelivr.net — Cisco Umbrella Rank: 346	40 KB
1	google.com www.google.com — Cisco Umbrella Rank: 2	408 B
1	doubleclick.net stats.g.doubleclick.net — Cisco Umbrella Rank: 74	353 B
1	sentry.io o299802.ingest.sentry.io — Cisco Umbrella Rank: 867017	301 B
1	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 48	84 KB
0	google.co.uk Failed www.google.co.uk Failed
128	11

	Domain	Requested by
77	observablehq.com	observablehq.com
11	avatars.observableusercontent.com	observablehq.com
10	static.observableusercontent.com	panningforbacon.static.observableusercontent.com observablehq.com
4	fonts.gstatic.com	fonts.googleapis.com
3	cdn.observableusercontent.com	static.observableusercontent.com
2	fonts.googleapis.com	observablehq.com static.observableusercontent.com
2	www.google-analytics.com	observablehq.com
1	events.observablehq.com	observablehq.com
1	cdn.jsdelivr.net	static.observableusercontent.com
1	www.google.com	observablehq.com
1	stats.g.doubleclick.net	observablehq.com
1	panningforbacon.static.observableusercontent.com	observablehq.com
1	api.observablehq.com	observablehq.com
1	o299802.ingest.sentry.io	observablehq.com
1	www.googletagmanager.com	observablehq.com
0	www.google.co.uk Failed	observablehq.com
128	16

This site contains links to these domains. Also see Links.

Domain
www.linkedin.com
twitter.com
github.com
www.youtube.com

Subject Issuer	Validity	Valid
observablehq.com Cloudflare Inc ECC CA-3	`2023-03-05` - `2024-03-04`	a year	crt.sh
*.google-analytics.com GTS CA 1C3	`2023-04-17` - `2023-07-10`	3 months	crt.sh
upload.video.google.com GTS CA 1C3	`2023-04-17` - `2023-07-10`	3 months	crt.sh
*.gstatic.com GTS CA 1C3	`2023-04-17` - `2023-07-10`	3 months	crt.sh
ingest.sentry.io DigiCert TLS RSA SHA256 2020 CA1	`2022-07-28` - `2023-08-28`	a year	crt.sh
*.static.observableusercontent.com Amazon RSA 2048 M01	`2023-03-01` - `2023-11-15`	9 months	crt.sh
avatars.observableusercontent.com Amazon RSA 2048 M02	`2023-03-10` - `2024-04-07`	a year	crt.sh
static.observableusercontent.com Amazon RSA 2048 M01	`2023-02-23` - `2023-11-06`	8 months	crt.sh
*.g.doubleclick.net GTS CA 1C3	`2023-04-17` - `2023-07-10`	3 months	crt.sh
www.google.com GTS CA 1C3	`2023-04-17` - `2023-07-10`	3 months	crt.sh
*.observableusercontent.com GTS CA 1P5	`2023-04-12` - `2023-07-11`	3 months	crt.sh
jsdelivr.net GlobalSign Atlas R3 DV TLS CA 2022 Q4	`2022-12-23` - `2024-01-24`	a year	crt.sh
cloudflare-dns.com DigiCert TLS Hybrid ECC SHA384 2020 CA1	`2023-01-12` - `2024-01-11`	a year	crt.sh

This page contains 2 frames:

Primary Page: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Frame ID: 402A3950685A516D896E6511222B976A
Requests: 109 HTTP requests in this frame

Frame: https://panningforbacon.static.observableusercontent.com/next/worker-fd95503b.html
Frame ID: 5A46C82B75BB8A146EABD6560D0B76B6
Requests: 15 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

DNS Lookup in JavaScript / Steve | ObservableInsert cellInsert cellInsert cellInsert cellInsert cellInsert cellInsert cellInsert cellInsert cellInsert cellThis notebook is a forkLinkedInTwitterGitHubYouTube

Detected technologies

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

google-analytics\.com/(?:ga|urchin|analytics)\.js

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtag/js

Marked (JavaScript Libraries) Expand

Overall confidence: 100%
Detected patterns

/marked(?:\.min)?\.js

jsDelivr (CDN) Expand

Overall confidence: 100%
Detected patterns

//cdn\.jsdelivr\.net/

Page Statistics

128
Requests

99 %
HTTPS

86 %
IPv6

11
Domains

16
Subdomains

15
IPs

4
Countries

2842 kB
Transfer

9361 kB
Size

5
Cookies

4 Outgoing links

These are links going to different origins than the main page.

URL: https://www.linkedin.com/company/observable
Title: LinkedIn

Search URL Search Domain Scan URL

URL: https://twitter.com/observablehq
Title: Twitter

Search URL Search Domain Scan URL

URL: https://github.com/observablehq/
Title: GitHub

Search URL Search Domain Scan URL

URL: https://www.youtube.com/c/Observablehq
Title: YouTube

Search URL Search Domain Scan URL

Redirected requests

There were HTTP redirect chains for the following requests:

128 HTTP transactions
1 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2 200 Primary Request dns-lookup-in-javascript Show response
observablehq.com/@panningforbacon/ 86 KB
24 KB 653ms
563ms Document
text/html 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare / Next.js

Resource Hash

27c6943c0f84283d4d840c57a685cb1961e10cad9d4ef33fc64f4db3d3e5241b

Security Headers

Name

Value

Content-Security-Policy

default-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com https://observablehq.com https://*.static.observableusercontent.com; connect-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com wss://ws.observablehq.com https://connector.observableusercontent.com https://js.stripe.com https://*.ingest.sentry.io https://*.google-analytics.com https://*.analytics.google.com https://stats.g.doubleclick.net/j/collect https://www.googleapis.com https://*.googletagmanager.com https://graph.microsoft.com https://*.clarity.ms https://*.contentful.com; font-src https://fonts.gstatic.com; frame-ancestors 'none'; frame-src https://observablehq.com https://observablehq.com/embed/ https://*.static.observableusercontent.com https://js.stripe.com https://www.youtube.com/embed/ https://docs.google.com data: blob:; img-src https://api.observablehq.com https://*.static.observableusercontent.com https://static.observablehq.com https://observablehq.com https://*.githubusercontent.com https://*.stripe.com https://avatars.observableusercontent.com https://*.google-analytics.com https://www.google.com/ads/ga-audiences https://pubads.g.doubleclick.net https://*.googletagmanager.com static.observableusercontent.com https://images.ctfassets.net https://*.amazonaws.com data: blob:; manifest-src 'none'; media-src https://static.observablehq.com https://videos.ctfassets.net; object-src 'none'; script-src 'self' 'sha256-wJDBOMfNtxwDQqRmEr8s4iJJaDijupcm37ZsNBHHxSY=' 'sha256-ERfeEwC9NC9b9t4L2Qp3/yGGgUmFfGH8pIR8kI04FUM=' 'sha256-UJ7XRVoD2oZRK3RRMLdPrdHA+LguX3UEXAZ6hVbuYIk=' https://static.observablehq.com https://*.google-analytics.com https://www.googleapis.com https://apis.google.com https://*.googletagmanager.com https://js.stripe.com https://*.clarity.ms; style-src https://static.observablehq.com https://observablehq.com https://fonts.googleapis.com 'unsafe-inline'; worker-src https://observablehq.com

Strict-Transport-Security

max-age=86400; includeSubDomains

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36
accept-language: en-GB,en;q=0.9

Response headers

cache-control: public, max-age=30
cf-cache-status: MISS
cf-ray: 7c404da8a8f271ea-LHR
content-encoding: gzip
content-security-policy: default-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com https://observablehq.com https://*.static.observableusercontent.com; connect-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com wss://ws.observablehq.com https://connector.observableusercontent.com https://js.stripe.com https://*.ingest.sentry.io https://*.google-analytics.com https://*.analytics.google.com https://stats.g.doubleclick.net/j/collect https://www.googleapis.com https://*.googletagmanager.com https://graph.microsoft.com https://*.clarity.ms https://*.contentful.com; font-src https://fonts.gstatic.com; frame-ancestors 'none'; frame-src https://observablehq.com https://observablehq.com/embed/ https://*.static.observableusercontent.com https://js.stripe.com https://www.youtube.com/embed/ https://docs.google.com data: blob:; img-src https://api.observablehq.com https://*.static.observableusercontent.com https://static.observablehq.com https://observablehq.com https://*.githubusercontent.com https://*.stripe.com https://avatars.observableusercontent.com https://*.google-analytics.com https://www.google.com/ads/ga-audiences https://pubads.g.doubleclick.net https://*.googletagmanager.com static.observableusercontent.com https://images.ctfassets.net https://*.amazonaws.com data: blob:; manifest-src 'none'; media-src https://static.observablehq.com https://videos.ctfassets.net; object-src 'none'; script-src 'self' 'sha256-wJDBOMfNtxwDQqRmEr8s4iJJaDijupcm37ZsNBHHxSY=' 'sha256-ERfeEwC9NC9b9t4L2Qp3/yGGgUmFfGH8pIR8kI04FUM=' 'sha256-UJ7XRVoD2oZRK3RRMLdPrdHA+LguX3UEXAZ6hVbuYIk=' https://static.observablehq.com https://*.google-analytics.com https://www.googleapis.com https://apis.google.com https://*.googletagmanager.com https://js.stripe.com https://*.clarity.ms; style-src https://static.observablehq.com https://observablehq.com https://fonts.googleapis.com 'unsafe-inline'; worker-src https://observablehq.com
content-type: text/html; charset=utf-8
date: Mon, 08 May 2023 08:23:55 GMT
etag: "1vg6muwn411vm6"
server: cloudflare
strict-transport-security: max-age=86400; includeSubDomains
vary: cookie, Accept-Encoding
via: 1.1 vegur
x-powered-by: Next.js

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 51 KB
21 KB 161ms
44ms Script
text/javascript 2a00:1450:4001:830::200e
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google-analytics.com/analytics.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:830::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

e7b90d32907f89c49e9e2a2ccca95133277f756f13a14187936d9b948ff67b44

Security Headers

Name	Value
Strict-Transport-Security	max-age=10886400; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

strict-transport-security: max-age=10886400; includeSubDomains; preload
content-encoding: gzip
x-content-type-options: nosniff
date: Mon, 08 May 2023 07:05:00 GMT
last-modified: Mon, 17 Apr 2023 22:36:01 GMT
server: Golfe2
age: 4735
vary: Accept-Encoding
content-type: text/javascript
cache-control: public, max-age=7200
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 20737
expires: Mon, 08 May 2023 09:05:00 GMT

GET
H2 200 js Show response
www.googletagmanager.com/gtag/ 248 KB
84 KB 181ms
65ms Script
application/javascript 2a00:1450:4001:812::2008
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.googletagmanager.com/gtag/js?id=G-9B88TP6PKQ

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:812::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

edd30adca9ca7b614960251576c742bdde87df921e0eeea7cbbd6032c0809648

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Xss-Protection	0

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Mon, 08 May 2023 08:23:55 GMT
content-encoding: br
strict-transport-security: max-age=31536000; includeSubDomains
server: Google Tag Manager
vary: Accept-Encoding
content-type: application/javascript; charset=UTF-8
access-control-allow-origin: *
cache-control: private, max-age=900
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
access-control-allow-headers: Cache-Control
content-length: 85813
x-xss-protection: 0
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires: Mon, 08 May 2023 08:23:55 GMT

GET
H2 200 a6e8f52c353c6bb2.css
observablehq.com/_next/static/css/ 123 KB
22 KB 51ms
51ms Stylesheet
text/css 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/_next/static/css/a6e8f52c353c6bb2.css

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

27333749072042eebf5eab75022ec4d663b07c92de8e078e162e2c1aa38b02c9

Security Headers

Name

Value

Content-Security-Policy

default-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com https://observablehq.com https://*.static.observableusercontent.com; connect-src 'self' https://api.observablehq.com https://events.observablehq.com https://static.observablehq.com wss://ws.observablehq.com https://connector.observableusercontent.com https://js.stripe.com https://*.ingest.sentry.io https://www.google-analytics.com https://stats.g.doubleclick.net/j/collect https://www.googleapis.com https://graph.microsoft.com https://*.clarity.ms https://*.contentful.com; font-src https://fonts.gstatic.com; frame-ancestors 'none'; frame-src https://observablehq.com https://observablehq.com/embed/ https://*.static.observableusercontent.com https://js.stripe.com https://www.youtube.com/embed/ https://docs.google.com data: blob:; img-src https://api.observablehq.com https://*.static.observableusercontent.com https://static.observablehq.com https://observablehq.com https://*.githubusercontent.com https://*.stripe.com https://avatars.observableusercontent.com https://www.google-analytics.com https://www.google.com/ads/ga-audiences https://pubads.g.doubleclick.net static.observableusercontent.com https://images.ctfassets.net https://*.amazonaws.com data: blob:; manifest-src 'none'; media-src https://static.observablehq.com https://videos.ctfassets.net; object-src 'none'; script-src 'self' 'sha256-wJDBOMfNtxwDQqRmEr8s4iJJaDijupcm37ZsNBHHxSY=' 'sha256-UJ7XRVoD2oZRK3RRMLdPrdHA+LguX3UEXAZ6hVbuYIk=' https://static.observablehq.com https://www.google-analytics.com https://www.googleapis.com https://apis.google.com https://js.stripe.com https://*.clarity.ms; style-src https://static.observablehq.com https://observablehq.com https://fonts.googleapis.com 'unsafe-inline'; worker-src https://observablehq.com

Strict-Transport-Security

max-age=86400; includeSubDomains

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Mon, 08 May 2023 08:23:55 GMT
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Response headers

date: Mon, 08 May 2023 08:23:55 GMT
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Protocol

Security

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Server

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Reverse DNS

Software

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Security Headers

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Value

Content-Security-Policy

Strict-Transport-Security

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Request headers

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Response headers

date: Mon, 08 May 2023 08:23:55 GMT
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GET
H2 200 2656-b969075e14e76e3a.js Show response
observablehq.com/_next/static/chunks/ 11 KB
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General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/_next/static/chunks/2656-b969075e14e76e3a.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name

Value

Content-Security-Policy

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Strict-Transport-Security

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Request headers

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Response headers

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GET
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observablehq.com/_next/static/chunks/ 22 KB
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General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/_next/static/chunks/8764-4753f0bd6db003de.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

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Value

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Strict-Transport-Security

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Request headers

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cf-ray: 7c404dac5d5671ea-LHR

GET
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observablehq.com/_next/static/chunks/ 78 KB
23 KB 80ms
74ms Script
application/javascript 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

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Full URL

https://observablehq.com/_next/static/chunks/6817-02b704f4dd15c23c.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name

Value

Content-Security-Policy

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Strict-Transport-Security

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Request headers

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Response headers

date: Mon, 08 May 2023 08:23:55 GMT
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GET
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observablehq.com/_next/static/chunks/ 102 KB
32 KB 96ms
89ms Script
application/javascript 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

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Full URL

https://observablehq.com/_next/static/chunks/270-756bd856ddfa6bf3.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

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Security Headers

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Value

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Strict-Transport-Security

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Request headers

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Response headers

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cache-control: public, max-age=31536000, immutable
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GET
H2 200 6954-f0c8415401e1d622.js Show response
observablehq.com/_next/static/chunks/ 16 KB
5 KB 100ms
94ms Script
application/javascript 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/_next/static/chunks/6954-f0c8415401e1d622.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

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https://observablehq.com/_next/static/chunks/9660-a32a3efa0bad77c3.js

Requested by

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General

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Show headers Download Go to

Full URL

https://observablehq.com/_next/static/1CYdd_-3cTM91u9BixqDZ/_ssgManifest.js

Requested by

Host: observablehq.com
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Protocol

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General

Check archive.org

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Full URL

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Check archive.org

Show headers Download Go to

Full URL

https://fonts.gstatic.com/s/sourceserifpro/v15/neIXzD-0qpwxpaWvjeD0X88SAOeasc8btSyqxA.woff2

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General

Check archive.org

Show headers Download Go to

Full URL

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Sat, 06 May 2023 15:16:34 GMT
x-content-type-options: nosniff
age: 148041
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
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POST
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GOOGLE-CLOUD-PLAT...

General

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Show headers Download Go to

Full URL

https://o299802.ingest.sentry.io/api/5593183/envelope/?sentry_key=ca9eac14b9164458a334243bb3c08c45&sentry_version=7&sentry_client=sentry.javascript.nextjs%2F7.38.0

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/pages/_app-1c9a8df420e6c011.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Reverse DNS

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Security Headers

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Request headers

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Content-Type: text/plain;charset=UTF-8

Response headers

date: Mon, 08 May 2023 08:23:55 GMT
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GET
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api.observablehq.com/collection/@observablehq/ 265 KB
44 KB 64ms
44ms Fetch
application/json 2606:4700:10::6816:14dc
CLOUDFLARENET

General

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Full URL

https://api.observablehq.com/collection/@observablehq/featured-creators?with_listings=false

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/pages/_app-1c9a8df420e6c011.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Request headers

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Response headers

date: Mon, 08 May 2023 08:23:56 GMT
content-security-policy: default-src 'none'
x-content-type-options: nosniff
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GET
H2 200 worker-fd95503b.html Show response
panningforbacon.static.observableusercontent.com/next/ Frame 5A46 282 B
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text/html 2600:9000:2250:8200:3:3696:5cc0:93a1
AMAZON-02

General

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Show headers Download Go to

Full URL: https://panningforbacon.static.observableusercontent.com/next/worker-fd95503b.html
Requested by: Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/2218-1dd97413fcc018f8.js
Protocol: H2
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Software: AmazonS3 /
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Request headers

Referer: https://observablehq.com/
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Response headers

accept-ranges: bytes
age: 999812
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date: Wed, 26 Apr 2023 18:40:25 GMT
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POST
H2 200 collect Show response
www.google-analytics.com/j/ 2 B
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text/plain 2a00:1450:4001:830::200e
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google-analytics.com/j/collect?v=1&_v=j100&aip=1&a=325499225&t=pageview&_s=1&dl=https%3A%2F%2Fobservablehq.com%2F%40panningforbacon%2Fdns-lookup-in-javascript&dp=%2F%40panningforbacon%2Fdns-lookup-in-javascript&ul=en-us&de=UTF-8&dt=DNS%20Lookup%20in%20JavaScript%20%2F%20Steve%20%7C%20Observable&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=aEBAAEABAAAAACAAI~&jid=1146806706&gjid=1518570392&cid=1136151489.1683534236&tid=UA-112925870-1&_gid=2085944938.1683534236&_r=1&z=818258430

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/pages/_app-1c9a8df420e6c011.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Reverse DNS

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Security Headers

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Request headers

Referer: https://observablehq.com/
accept-language: en-GB,en;q=0.9
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Content-Type: text/plain

Response headers

pragma: no-cache
date: Mon, 08 May 2023 08:23:56 GMT
x-content-type-options: nosniff
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server: Golfe2
content-type: text/plain
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GET
H/1.1 200
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AMAZON-02

General

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Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/fd3468c22326828bcbe00290d231769b26eecb5cbc67233b12ec08af7dcf4e07?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
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X-Content-Type-Options: nosniff
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X-Amz-Cf-Id: dI7y5PAyoNPJKfUtQ8PyRDdjjErdHM44IfbkTkVoBg2Rk9_wwhdGKQ==

GET
H2 200 7444.072972ea214dd758.js
observablehq.com/_next/static/chunks/ 3 MB
446 KB 48ms
48ms Other
application/javascript 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/_next/static/chunks/7444.072972ea214dd758.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name

Value

Content-Security-Policy

Strict-Transport-Security

max-age=86400; includeSubDomains

Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Mon, 08 May 2023 08:23:56 GMT
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GET
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application/javascript 2606:4700:10::6816:14dc
CLOUDFLARENET

General

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Show headers Download Go to

Full URL

https://observablehq.com/_next/static/chunks/6538-3084ef5784c27d39.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/main-6d0739027f57dcdc.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

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Value

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Request headers

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Response headers

date: Mon, 08 May 2023 08:23:56 GMT
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GET
H2 200 4905-22b2e4923958eb6a.js
observablehq.com/_next/static/chunks/ 0
5 KB 52ms
46ms Other
application/javascript 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/_next/static/chunks/4905-22b2e4923958eb6a.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/main-6d0739027f57dcdc.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

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Resource Hash

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Security Headers

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Value

Content-Security-Policy

Strict-Transport-Security

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Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

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Resource Hash: c0f4798c1cdc547b8b44855e4f1b6d62a5406d33f27a194147c4fa62b95f27c2

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://panningforbacon.static.observableusercontent.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Wed, 12 Apr 2023 18:45:58 GMT
content-encoding: gzip
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Wed, 12 Apr 2023 18:35:30 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 2209079
etag: W/"0e02facff8762c30ff61f5d2797e3837"
x-amz-server-side-encryption: AES256
vary: Accept-Encoding
x-cache: Hit from cloudfront
content-type: text/css; charset=utf-8
cache-control: public, max-age=31536000, immutable
x-amz-cf-id: Ceu5unRzPeYwb_fG67xvrm2sTKpE31NX1iYns9AD4ZNSE8nvBpMiDw==

GET
H2 200 worker-50055c3f.js Show response
static.observableusercontent.com/next/ Frame 5A46 120 KB
38 KB 212ms
55ms Script
application/javascript 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://static.observableusercontent.com/next/worker-50055c3f.js
Requested by: Host: panningforbacon.static.observableusercontent.com
URL: https://panningforbacon.static.observableusercontent.com/next/worker-fd95503b.html
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: ddaec46b48bb876821341e05c35958699cf7488b8eb695577f05567c2f58108a

Request headers

Referer: https://panningforbacon.static.observableusercontent.com/
Origin: https://panningforbacon.static.observableusercontent.com
accept-language: en-GB,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Fri, 28 Apr 2023 14:45:28 GMT
content-encoding: gzip
via: 1.1 e1f996a9009532eeea33edfd32ef3240.cloudfront.net (CloudFront)
x-amz-cf-pop: FRA56-P6
age: 841109
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
last-modified: Fri, 28 Apr 2023 01:52:13 GMT
server: AmazonS3
etag: W/"498cd26e173e8f4739bd9d2c0ca91c5b"
access-control-max-age: 3000
access-control-allow-methods: GET
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=31536000, immutable
vary: Accept-Encoding,Origin,Access-Control-Request-Headers,Access-Control-Request-Method
x-amz-cf-id: Rfc6644BmygWL2ScSEIpOAa6VBcmX0PBu7iBmmtn1a2DmsiPAiwwsA==

POST
H2 200 collect Show response
stats.g.doubleclick.net/j/ 7 B
353 B 118ms
38ms XHR
text/plain 2a00:1450:400c:c09::9c
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j100&tid=UA-112925870-1&cid=1136151489.1683534236&jid=1146806706&gjid=1518570392&_gid=2085944938.1683534236&_u=aEBAAEAAAAAAACAAI~&z=2089248964

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/pages/_app-1c9a8df420e6c011.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:400c:c09::9c Brussels, Belgium, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

3c25b077a6d92cd9d3576660b68c4c0bd135b78b3cd3b66491ff2c7aa0eeaad3

Security Headers

Name	Value
Strict-Transport-Security	max-age=10886400; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Referer: https://observablehq.com/
accept-language: en-GB,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36
Content-Type: text/plain

Response headers

pragma: no-cache
strict-transport-security: max-age=10886400; includeSubDomains; preload
date: Mon, 08 May 2023 08:23:56 GMT
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
content-type: text/plain
access-control-allow-origin: https://observablehq.com
cache-control: no-cache, no-store, must-revalidate
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 7
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H/1.1 200
OK 3d8000aa2ff6515179603ce3451b0104272bd8b602dd87bb09f033573d6fa6a5
avatars.observableusercontent.com/avatar/ 915 B
2 KB 142ms
45ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/3d8000aa2ff6515179603ce3451b0104272bd8b602dd87bb09f033573d6fa6a5?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

68be2499726d8c9dc1964b9007d7a5af7eda9347459c72056be8e0548101d02a

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Sun, 19 Mar 2023 08:00:41 GMT
Via: 1.1 vegur, 1.1 6fa33d47af6f4da7007689083cfe9b9c.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 4321395
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 915
Server: Cowboy
ETag: "393-m7Q2QYGbmEt8B37X+rpZJmIyxv8"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: emh3338VPIgev2DfrRH7Nx5RYf2OQuuwxR8oUEr8Dkm-O5ECSrKFKQ==

GET
H/1.1 200
OK 3ddda207244e30a947ff3cd2852cc7d52194394a6709b59cb4ac487ff751c216
avatars.observableusercontent.com/avatar/ 920 B
2 KB 143ms
46ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/3ddda207244e30a947ff3cd2852cc7d52194394a6709b59cb4ac487ff751c216?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

9b44a46e84e45a7b4cf326f044edefc63dff3e77cffae6ddc03e500239676cfd

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Sat, 29 Apr 2023 09:00:56 GMT
Via: 1.1 vegur, 1.1 286eb4b50e0acf373dd03645aee00b7e.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 775380
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 920
Server: Cowboy
ETag: "398-ua21BVmbJW+tD1sXkGaZ3+E0aGs"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: AmqQ7qdcSutrOVwFCVz3bSil9yGkWaKmGw2T3WEjp-HKi6lPycP5xQ==

GET
H/1.1 200
OK 16798d7c40be0311619918097a95e283dd1c432e23392674264f3e2194d225fa
avatars.observableusercontent.com/avatar/ 2 KB
3 KB 144ms
48ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/16798d7c40be0311619918097a95e283dd1c432e23392674264f3e2194d225fa?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

17081f34bd8b87c1e30ad964c6d0de781511c64ca47d2b0578a21e7219b13468

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Wed, 19 Apr 2023 23:44:08 GMT
Content-Encoding: gzip
Via: 1.1 vegur, 1.1 7158aa4ac648947d564b98d9769b5b2a.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 1586388
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 2189
Server: Cowboy
ETag: "88f-EUOEhei+nhgknyZXwqgr605FvZI"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: ZThgGv4g-9A2yTI5boDAZdjDL40j5oN7EGhXK8hrKiaXjasPdRx7Vg==

GET
H/1.1 200
OK e3bebb4ad499da5d3678b4b70dec71e4984856b82c3e906d6976450d0768faed
avatars.observableusercontent.com/avatar/ 967 B
2 KB 142ms
45ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/e3bebb4ad499da5d3678b4b70dec71e4984856b82c3e906d6976450d0768faed?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

b4eb3aa5cf23e1b497a5e4dc732e65598cf475fa1066dbd96c380ac1f912b18d

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Fri, 07 Apr 2023 09:11:05 GMT
Via: 1.1 vegur, 1.1 edfd22ec6695cdc9d7ac634220af1314.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 2675571
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 967
Server: Cowboy
ETag: "3c7-3h5Kozqy7gtBYgoKID7GxchgTqY"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: PA8q2e5hmWSdNxMyJfVoq1x2w31fOGlZ1n1QffgOTNea6TpZEhbumg==

GET
H/1.1 200
OK e615e819ce83d43faef607e48c53c5ff63943aa0ba9f5848499bd02fef7396f4
avatars.observableusercontent.com/avatar/ 701 B
1 KB 145ms
47ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/e615e819ce83d43faef607e48c53c5ff63943aa0ba9f5848499bd02fef7396f4?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

3cdad9520c57a7d57fbcc2f3ed7e7a16ea05f302dade68fea575004b77ec3dff

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Sat, 29 Apr 2023 09:00:56 GMT
Via: 1.1 vegur, 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 775380
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 701
Server: Cowboy
ETag: "2bd-vx2948mX4gJxItsH4TfkOmA0uZM"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: zbQN0HGbj0kj1gKf6mlwQ20Po5srUt-hpX3W-0epZ8HgGKezKjB95A==

GET
H/1.1 200
OK b06f29c9ebba5f82bb96583af4e514bf21938607389bae332427fac99185246f
avatars.observableusercontent.com/avatar/ 908 B
1 KB 45ms
45ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/b06f29c9ebba5f82bb96583af4e514bf21938607389bae332427fac99185246f?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

29a622bf67aa7638b76c4fac868f11513a07efff8677b2f35e24fa21567beb84

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Tue, 04 Apr 2023 15:26:53 GMT
Via: 1.1 vegur, 1.1 286eb4b50e0acf373dd03645aee00b7e.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 2912223
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 908
Server: Cowboy
ETag: "38c-jR+29MTF83LgDByQHJpaTNG+Mt8"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: e4dg_atzHDaJ1uPr1drYTdH84hZjj_3_P-wy6k2mf5A1Ith2uaB4gQ==

GET
H/1.1 200
OK bc9bae4b7e30062b343ae978a13454e29cd3f2daf3a800d0024043686ddf094b
avatars.observableusercontent.com/avatar/ 823 B
1 KB 46ms
46ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/bc9bae4b7e30062b343ae978a13454e29cd3f2daf3a800d0024043686ddf094b?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

18f337fc2d58d8903de77acb9f7a23b3e0e06f6f33f65bc0c59fe285e5018370

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Fri, 17 Feb 2023 07:19:13 GMT
Via: 1.1 vegur, 1.1 edfd22ec6695cdc9d7ac634220af1314.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 6915883
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 823
Server: Cowboy
ETag: "337-gOtSVis6eewZRSuU2Uw+t6Nzits"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: rePVOH8NiNUanSjS6nCWKhqk7XLvq_pckPluMHJKvlu7lnivn7XxkA==

GET
H/1.1 200
OK 84aa7fe27a61a7eb63cab428f829f21b6b4ba8401826367836affa25020a415e
avatars.observableusercontent.com/avatar/ 300 B
927 B 46ms
46ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/84aa7fe27a61a7eb63cab428f829f21b6b4ba8401826367836affa25020a415e?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

9996bfd40ce13d43c165673490137973a60901e467cb1265796c69db488e7a71

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Wed, 12 Apr 2023 14:06:05 GMT
Via: 1.1 vegur, 1.1 6fa33d47af6f4da7007689083cfe9b9c.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 2225871
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 300
Server: Cowboy
ETag: "12c-4MIcW3pYufjkduZegucM+YkQ7pA"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: 0_aYZqW_8OgF1S_ci4A9Sg6BQ0_mkDp_W5HsUKJOTzI7j-qWmn8bAQ==

GET
H/1.1 200
OK 11a2a788174af11f25180be70f24ce9056d3192c738f35a93dd8acb684eb00d1
avatars.observableusercontent.com/avatar/ 415 B
1 KB 45ms
45ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/11a2a788174af11f25180be70f24ce9056d3192c738f35a93dd8acb684eb00d1?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

4169ab97074bd1b1034ae849e1c7e46a2f3ab1f3d6878c50d4d830f087539d90

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Wed, 12 Apr 2023 14:06:05 GMT
Via: 1.1 vegur, 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 2225871
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 415
Server: Cowboy
ETag: "19f-m6gW5OQDKNX59457Wad7xaVSO7A"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: q9dpW0JmMyKl42vtbNqO4i54coJVtB2l2c6Zx6z5tjEupIopBghepA==

GET
H/1.1 200
OK 28b8518718dc3e70bed3a8256215864c8ac22777155e21dd5564f285665f60ae
avatars.observableusercontent.com/avatar/ 890 B
1 KB 46ms
46ms Image
image/avif 2600:9000:21f3:8c00:10:f2df:eb80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://avatars.observableusercontent.com/avatar/28b8518718dc3e70bed3a8256215864c8ac22777155e21dd5564f285665f60ae?s=60&format=avif

Requested by

Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2600:9000:21f3:8c00:10:f2df:eb80:93a1 , United States, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Cowboy /

Resource Hash

03c4755300fe72016a2aa5266af62ba403bd0cbf116c339121c23b3028c58e56

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

Content-Security-Policy: default-src 'none'
Strict-Transport-Security: max-age=86400; includeSubDomains; preload
X-Content-Type-Options: nosniff
Date: Fri, 31 Mar 2023 05:23:11 GMT
Via: 1.1 vegur, 1.1 7158aa4ac648947d564b98d9769b5b2a.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FRA2-C2
Age: 3294045
X-Cache: Hit from cloudfront
Connection: keep-alive
Content-Length: 890
Server: Cowboy
ETag: "37a-RQKhc3+DBPQosLY67ZNGMbLl8QU"
X-Frame-Options: deny
Content-Type: image/avif
Cache-Control: public, max-age=31536000, immutable
X-Amz-Cf-Id: kaeg4fDZVn2ItbqK2e2L-u00o9Wrgn0Ox01seSHllPyTGiY6JZ9M9g==

GET
H2 200 adc3f106f664cdac33eed304a7bdde8a92c7df5df26d2e456dcdc07d7364ec79.jpg
static.observableusercontent.com/thumbnail/ 25 KB
25 KB 149ms
56ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/adc3f106f664cdac33eed304a7bdde8a92c7df5df26d2e456dcdc07d7364ec79.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: adc3f106f664cdac33eed304a7bdde8a92c7df5df26d2e456dcdc07d7364ec79

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Wed, 19 Apr 2023 14:43:20 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Tue, 18 Apr 2023 16:42:19 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 1618837
etag: "074adc45d923b01e915f046c18c390e6"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 25118
x-amz-cf-id: X8bNLMtVqKlLvnIFFaxqy6Yoc4cm87n3Ws_KTvLqrdHplXpdOpjdCQ==

GET
H2 200 0f5407db81f821bea316a27c8a11153a71fab69b73912e05dbcb72623e1534a8.jpg
static.observableusercontent.com/thumbnail/ 65 KB
66 KB 149ms
56ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/0f5407db81f821bea316a27c8a11153a71fab69b73912e05dbcb72623e1534a8.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 0f5407db81f821bea316a27c8a11153a71fab69b73912e05dbcb72623e1534a8

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Sat, 29 Apr 2023 01:32:07 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Tue, 25 Apr 2023 04:44:10 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 802309
etag: "572c62cdc23332da174696fc1d8cc39d"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 66607
x-amz-cf-id: EOtai4mJG7AY3meqQUi3zWXzzTtk8_x-oZfd3dlEO7NZxs6cszredA==

GET
H2 200 5caae868bb14c490c502c3bd71c9d15003a9426377f385ae09a01adb62539d99.jpg
static.observableusercontent.com/thumbnail/ 38 KB
38 KB 149ms
56ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/5caae868bb14c490c502c3bd71c9d15003a9426377f385ae09a01adb62539d99.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 5caae868bb14c490c502c3bd71c9d15003a9426377f385ae09a01adb62539d99

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Fri, 17 Feb 2023 23:50:49 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Fri, 17 Feb 2023 23:50:47 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 6856388
etag: "cb8db3955cfb36a9cb61aed07f3a8700"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 38753
x-amz-cf-id: l5sdimsINu96MPlsMt24pQeMeIFZuHci3cUkGhYtPVsDKM9uyrwNaw==

GET
H2 200 794c6bd0aa4a316ed701f66e3d9e81db0fdb5b547f9c08869de113220ae41654.jpg
static.observableusercontent.com/thumbnail/ 17 KB
18 KB 149ms
57ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/794c6bd0aa4a316ed701f66e3d9e81db0fdb5b547f9c08869de113220ae41654.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 794c6bd0aa4a316ed701f66e3d9e81db0fdb5b547f9c08869de113220ae41654

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Tue, 28 Feb 2023 22:39:53 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Tue, 28 Feb 2023 22:39:52 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 5910244
etag: "e498ff9d02905c8bc193c8e5f7f1e985"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 17571
x-amz-cf-id: B8JJVe_mSH6vFTDchGpV8uqGSQA0URxntO5f95lIllABrZOHkveIEQ==

GET
H2 200 a7b28e9d61069d84425ea82114d3f078cae99e1211dc7f6bd1ecd6b6dc4418ca.jpg
static.observableusercontent.com/thumbnail/ 18 KB
19 KB 148ms
56ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/a7b28e9d61069d84425ea82114d3f078cae99e1211dc7f6bd1ecd6b6dc4418ca.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: a7b28e9d61069d84425ea82114d3f078cae99e1211dc7f6bd1ecd6b6dc4418ca

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Sun, 09 Apr 2023 19:39:12 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Sat, 08 Apr 2023 12:25:42 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 2465085
etag: "8dca3de746d3b229b0237df393bed1e2"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 18927
x-amz-cf-id: CFSP08RQirLgIZSh7yBj2nrAWJisIREy0MIwnzqtvImC0rsjsHhqQw==

GET
H2 200 0f35566b3755f142daf2ad71e55f781a2ee731688a1a6cac131457cb2e1b4c8c.jpg
static.observableusercontent.com/thumbnail/ 25 KB
25 KB 119ms
118ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/0f35566b3755f142daf2ad71e55f781a2ee731688a1a6cac131457cb2e1b4c8c.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 0f35566b3755f142daf2ad71e55f781a2ee731688a1a6cac131457cb2e1b4c8c

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Wed, 12 Apr 2023 11:43:42 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Wed, 12 Apr 2023 10:37:01 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 2234415
etag: "5bef0df1a093660f27d81e0832a961ae"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 25263
x-amz-cf-id: qMgjov4C5K2urRYdCJpCFM_Q2yx8lZYI8A7VFlysBFUd_TaqWAHVIg==

GET
H2 200 a2d6adaf2adcca77c9a51fb974c2535ad7d831162c08acef01f0872dd2efd5c3.jpg
static.observableusercontent.com/thumbnail/ 37 KB
37 KB 119ms
118ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/a2d6adaf2adcca77c9a51fb974c2535ad7d831162c08acef01f0872dd2efd5c3.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: a2d6adaf2adcca77c9a51fb974c2535ad7d831162c08acef01f0872dd2efd5c3

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Wed, 15 Mar 2023 16:59:21 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Tue, 14 Mar 2023 06:12:16 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 4634676
etag: "0bb1cf57fc318cad7ec36ecdcad9796e"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 37431
x-amz-cf-id: d-96FfC5MK4dLIPL_1BuNmdj_ARwdPOW-S1UI8xq-u6qZ2nIK1lr-g==

GET
H2 200 af591ac89f70c3ff75851bad46200060fa20ecc24750ada81ff92264e6d27097.jpg
static.observableusercontent.com/thumbnail/ 35 KB
35 KB 128ms
127ms Image
image/jpeg 2600:9000:2490:9200:1c:df24:ee80:93a1
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://static.observableusercontent.com/thumbnail/af591ac89f70c3ff75851bad46200060fa20ecc24750ada81ff92264e6d27097.jpg
Requested by: Host: observablehq.com
URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:2490:9200:1c:df24:ee80:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: af591ac89f70c3ff75851bad46200060fa20ecc24750ada81ff92264e6d27097

Request headers

accept-language: en-GB,en;q=0.9
Referer: https://observablehq.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Tue, 04 Apr 2023 11:54:10 GMT
via: 1.1 8d07edb8bf98788bf512d51f8cc554f6.cloudfront.net (CloudFront)
last-modified: Tue, 04 Apr 2023 01:18:55 GMT
server: AmazonS3
x-amz-cf-pop: FRA56-P6
age: 2924987
etag: "db6f94c56db5227cfe432db0e8bd57ee"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/jpeg
cache-control: public, max-age=31536000, immutable
accept-ranges: bytes
content-length: 35895
x-amz-cf-id: MmVcf_gaVte2CfQlDbm0HiGfDS0lXT-2I9REzY15vk3qxaFMwRMgYw==

GET
H2 200 6538-3084ef5784c27d39.js Show response
observablehq.com/_next/static/chunks/ 21 KB
8 KB 45ms
44ms Script
application/javascript 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://observablehq.com/_next/static/chunks/6538-3084ef5784c27d39.js

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/main-6d0739027f57dcdc.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

5e445cad613a753fba9ef29e5725ce9f27b9dc59b77692c6de826292dd1a02a6

Security Headers

Name

Value

Content-Security-Policy

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Strict-Transport-Security

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Response headers

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GET
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GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j100&tid=UA-112925870-1&cid=1136151489.1683534236&jid=1146806706&_u=aEBAAEAAAAAAACAAI~&z=1892675501

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Protocol

Security

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Server

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Reverse DNS

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Security Headers

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Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

pragma: no-cache
date: Mon, 08 May 2023 08:23:56 GMT
x-content-type-options: nosniff
server: cafe
content-type: image/gif
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
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GET ga-audiences
www.google.co.uk/ads/ 0
0

GET
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fonts.googleapis.com/ Frame 5A46 13 KB
984 B 53ms
52ms Stylesheet
text/css 2a00:1450:4001:829::200a
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://fonts.googleapis.com/css2?family=Source+Serif+Pro:ital,wght@0,400;0,600;0,700;1,400;1,600;1,700&display=swap

Requested by

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Protocol

Security

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Security Headers

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Request headers

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Response headers

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date: Mon, 08 May 2023 08:23:56 GMT
content-encoding: gzip
x-content-type-options: nosniff
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server: ESF
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expires: Mon, 08 May 2023 08:23:56 GMT

GET
H2 200 inputs.min.js Show response
cdn.observableusercontent.com/npm/@observablehq/inputs@0.10.4/dist/ Frame 5A46 26 KB
10 KB 150ms
56ms Script
application/javascript 2606:4700:3037::6815:5381
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.observableusercontent.com/npm/@observablehq/inputs@0.10.4/dist/inputs.min.js

Requested by

Host: static.observableusercontent.com
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Protocol

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Request headers

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Response headers

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strict-transport-security: max-age=31536000; includeSubDomains; preload
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GET
H2 200 marked.min.js Show response
cdn.observableusercontent.com/npm/marked@0.3.12/ Frame 5A46 16 KB
7 KB 146ms
54ms Script
application/javascript 2606:4700:3037::6815:5381
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.observableusercontent.com/npm/marked@0.3.12/marked.min.js

Requested by

Host: static.observableusercontent.com
URL: https://static.observableusercontent.com/next/worker-50055c3f.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Resource Hash

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Security Headers

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Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Mon, 08 May 2023 08:23:56 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
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GET
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cdn.jsdelivr.net/npm/dohjs@latest/dist/ Frame 5A46 128 KB
40 KB 91ms
27ms Script
application/javascript 2a04:4e42:400::485
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.jsdelivr.net/npm/dohjs@latest/dist/doh.min.js

Requested by

Host: static.observableusercontent.com
URL: https://static.observableusercontent.com/next/worker-50055c3f.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Reverse DNS

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Security Headers

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X-Content-Type-Options	nosniff

Request headers

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Response headers

strict-transport-security: max-age=31536000; includeSubDomains; preload
date: Mon, 08 May 2023 08:23:56 GMT
x-content-type-options: nosniff
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GET
H2 200 htl.min.js Show response
cdn.observableusercontent.com/npm/htl@0.3.1/dist/ Frame 5A46 7 KB
3 KB 68ms
67ms Script
application/javascript 2606:4700:3037::6815:5381
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.observableusercontent.com/npm/htl@0.3.1/dist/htl.min.js

Requested by

Host: static.observableusercontent.com
URL: https://static.observableusercontent.com/next/worker-50055c3f.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:3037::6815:5381 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

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Response headers

date: Mon, 08 May 2023 08:23:56 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
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GET
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fonts.gstatic.com/s/sourceserifpro/v15/ Frame 5A46 20 KB
20 KB 43ms
43ms Font
font/woff2 2a00:1450:4001:806::2003
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://fonts.gstatic.com/s/sourceserifpro/v15/neIQzD-0qpwxpaWvjeD0X88SAOeauXQ-oA.woff2

Requested by

Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css2?family=Source+Serif+Pro:ital,wght@0,400;0,600;0,700;1,400;1,600;1,700&display=swap

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:806::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

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Resource Hash

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Security Headers

Name	Value
X-Content-Type-Options	nosniff
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Request headers

Referer: https://fonts.googleapis.com/
Origin: https://panningforbacon.static.observableusercontent.com
accept-language: en-GB,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Sat, 06 May 2023 15:16:34 GMT
x-content-type-options: nosniff
age: 148042
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
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server: sffe
cross-origin-opener-policy: same-origin; report-to="apps-themes"
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access-control-allow-origin: *
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GET
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fonts.gstatic.com/s/sourceserifpro/v15/ Frame 5A46 20 KB
20 KB 54ms
53ms Font
font/woff2 2a00:1450:4001:806::2003
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://fonts.gstatic.com/s/sourceserifpro/v15/neIXzD-0qpwxpaWvjeD0X88SAOeasc8btSyqxA.woff2

Requested by

Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css2?family=Source+Serif+Pro:ital,wght@0,400;0,600;0,700;1,400;1,600;1,700&display=swap

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:806::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

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Resource Hash

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Security Headers

Name	Value
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Request headers

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accept-language: en-GB,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

date: Sat, 06 May 2023 12:05:42 GMT
x-content-type-options: nosniff
age: 159494
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server: sffe
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expires: Sun, 05 May 2024 12:05:42 GMT

GET
H2 200 dns-query Show response
1.1.1.1/ Frame 5A46 44 B
106 B 33ms
31ms Fetch
application/dns-message 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAEAAQ
Requested by: Host: cdn.jsdelivr.net
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Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
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Request headers

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accept-language: en-GB,en;q=0.9
Referer: https://panningforbacon.static.observableusercontent.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-origin: *
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare
cf-ray: 7c404db58e5554a6-MAN
content-length: 44
content-type: application/dns-message

GET
H2 200 dns-query Show response
1.1.1.1/ Frame 5A46 56 B
101 B 33ms
31ms Fetch
application/dns-message 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AABwAAQ
Requested by: Host: cdn.jsdelivr.net
URL: https://cdn.jsdelivr.net/npm/dohjs@latest/dist/doh.min.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash: 8541041beda8ca753b65efbeeb9996a6161df13b1a4917cbef5435bff8854dbf

Request headers

0: A
1: c
2: c
3: e
4: p
5: t
6: :
7
8: a
9: p
10: p
11: l
12: i
13: c
14: a
15: t
16: i
17: o
18: n
19: /
20: d
21: n
22: s
23: -
24: m
25: e
26: s
27: s
28: a
29: g
30: e
accept-language: en-GB,en;q=0.9
Referer: https://panningforbacon.static.observableusercontent.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-origin: *
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare
cf-ray: 7c404db58e5754a6-MAN
content-length: 56
content-type: application/dns-message

GET
H2 200 dns-query Show response
1.1.1.1/ Frame 5A46 78 B
123 B 33ms
32ms Fetch
application/dns-message 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAUAAQ
Requested by: Host: cdn.jsdelivr.net
URL: https://cdn.jsdelivr.net/npm/dohjs@latest/dist/doh.min.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash: ed087c56a79bc478a576f39bffde454f05b715c96ed1aa4cd12b2c60752e09b5

Request headers

0: A
1: c
2: c
3: e
4: p
5: t
6: :
7
8: a
9: p
10: p
11: l
12: i
13: c
14: a
15: t
16: i
17: o
18: n
19: /
20: d
21: n
22: s
23: -
24: m
25: e
26: s
27: s
28: a
29: g
30: e
accept-language: en-GB,en;q=0.9
Referer: https://panningforbacon.static.observableusercontent.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-origin: *
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare
cf-ray: 7c404db58e5f54a6-MAN
content-length: 78
content-type: application/dns-message

GET
H2 200 dns-query Show response
1.1.1.1/ Frame 5A46 49 B
94 B 33ms
32ms Fetch
application/dns-message 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AAA8AAQ
Requested by: Host: cdn.jsdelivr.net
URL: https://cdn.jsdelivr.net/npm/dohjs@latest/dist/doh.min.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash: 0707cbedacef7fa0bdb672839dad8e20217521146d9ad469eb9d31a11f6c32df

Request headers

0: A
1: c
2: c
3: e
4: p
5: t
6: :
7
8: a
9: p
10: p
11: l
12: i
13: c
14: a
15: t
16: i
17: o
18: n
19: /
20: d
21: n
22: s
23: -
24: m
25: e
26: s
27: s
28: a
29: g
30: e
accept-language: en-GB,en;q=0.9
Referer: https://panningforbacon.static.observableusercontent.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-origin: *
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare
cf-ray: 7c404db58e5954a6-MAN
content-length: 49
content-type: application/dns-message

GET
H2 200 dns-query Show response
1.1.1.1/ Frame 5A46 874 B
920 B 33ms
32ms Fetch
application/dns-message 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AABAAAQ
Requested by: Host: cdn.jsdelivr.net
URL: https://cdn.jsdelivr.net/npm/dohjs@latest/dist/doh.min.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash: 242e809c8c902f9079b8300729c5314802a8740ee48e87dab00b2e58cdc13a0a

Request headers

0: A
1: c
2: c
3: e
4: p
5: t
6: :
7
8: a
9: p
10: p
11: l
12: i
13: c
14: a
15: t
16: i
17: o
18: n
19: /
20: d
21: n
22: s
23: -
24: m
25: e
26: s
27: s
28: a
29: g
30: e
accept-language: en-GB,en;q=0.9
Referer: https://panningforbacon.static.observableusercontent.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-origin: *
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare
cf-ray: 7c404db58e5c54a6-MAN
content-length: 874
content-type: application/dns-message

OPTIONS
H2 200 dns-query
1.1.1.1/ Frame 0
0 92ms
26ms Preflight 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAEAAQ
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
Access-Control-Request-Method: GET
Origin: https://panningforbacon.static.observableusercontent.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
access-control-allow-methods: POST, GET
access-control-allow-origin: *
cf-ray: 7c404db55e0954a6-MAN
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare

OPTIONS
H2 200 dns-query
1.1.1.1/ Frame 0
0 92ms
27ms Preflight 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AABwAAQ
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
Access-Control-Request-Method: GET
Origin: https://panningforbacon.static.observableusercontent.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
access-control-allow-methods: POST, GET
access-control-allow-origin: *
cf-ray: 7c404db55e0c54a6-MAN
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare

OPTIONS
H2 200 dns-query
1.1.1.1/ Frame 0
0 94ms
28ms Preflight 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAUAAQ
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
Access-Control-Request-Method: GET
Origin: https://panningforbacon.static.observableusercontent.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
access-control-allow-methods: POST, GET
access-control-allow-origin: *
cf-ray: 7c404db55e1354a6-MAN
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare

OPTIONS
H2 200 dns-query
1.1.1.1/ Frame 0
0 92ms
27ms Preflight 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AAA8AAQ
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
Access-Control-Request-Method: GET
Origin: https://panningforbacon.static.observableusercontent.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
access-control-allow-methods: POST, GET
access-control-allow-origin: *
cf-ray: 7c404db55e1054a6-MAN
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare

OPTIONS
H2 200 dns-query
1.1.1.1/ Frame 0
0 92ms
27ms Preflight 1.1.1.1
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://1.1.1.1/dns-query?dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AABAAAQ
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 1.1.1.1 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS: one.one.one.one
Software: cloudflare /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
Access-Control-Request-Method: GET
Origin: https://panningforbacon.static.observableusercontent.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36

Response headers

access-control-allow-headers: 0,1,10,11,12,13,14,15,16,17,18,19,2,20,21,22,23,24,25,26,27,28,29,3,30,4,5,6,7,8,9
access-control-allow-methods: POST, GET
access-control-allow-origin: *
cf-ray: 7c404db55e1254a6-MAN
date: Mon, 08 May 2023 08:23:57 GMT
server: cloudflare

POST
H2 204 beacon-events
events.observablehq.com/ 0
377 B 393ms
368ms Ping
text/plain 2606:4700:10::6816:14dc
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://events.observablehq.com/beacon-events

Requested by

Host: observablehq.com
URL: https://observablehq.com/_next/static/chunks/pages/_app-1c9a8df420e6c011.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:10::6816:14dc , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare / Express

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
Content-Security-Policy	default-src 'none'
Strict-Transport-Security	max-age=86400; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	deny

Request headers

Referer: https://observablehq.com/
accept-language: en-GB,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.63 Safari/537.36
Content-Type: text/plain;charset=UTF-8

Response headers

date: Mon, 08 May 2023 08:23:57 GMT
content-security-policy: default-src 'none'
x-content-type-options: nosniff
strict-transport-security: max-age=86400; includeSubDomains; preload
via: 1.1 vegur
server: cloudflare
cf-cache-status: DYNAMIC
x-powered-by: Express
x-frame-options: deny
vary: Origin
access-control-allow-origin: https://observablehq.com
access-control-allow-credentials: true
cf-ray: 7c404db669b671ea-LHR
access-control-allow-headers: Authorization, Content-Type
content-length: 0

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain: www.google.co.uk
URL: https://www.google.co.uk/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j100&tid=UA-112925870-1&cid=1136151489.1683534236&jid=1146806706&_u=aEBAAEAAAAAAACAAI~&z=1892675501

Verdicts & Comments Add Verdict or Comment

27 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

5 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path	Expires	Name / Value
.observablehq.com/	1970-01-20 21:14:54	Name: _ga Value: GA1.2.1136151489.1683534236
.observablehq.com/	1970-01-20 11:40:20	Name: _gid Value: GA1.2.2085944938.1683534236
.observablehq.com/	1970-01-20 11:41:47	Name: T Value: bfc7e8bdb48c7905ae9a23cbcefca9a0
.observablehq.com/	1970-01-20 11:38:54	Name: _gat Value: 1
.observablehq.com/	1970-01-20 20:24:30	Name: D Value: 07e59edd-7e65-49f5-93f5-0dc02f1af68f\|1715070237473

2 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source	Level	URL Text
other	warning	URL: https://observablehq.com/_next/static/chunks/2218-1dd97413fcc018f8.js Message: Unrecognized feature: 'vr'.
security	error	URL: https://observablehq.com/@panningforbacon/dns-lookup-in-javascript Message: Refused to load the image 'https://www.google.co.uk/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j100&tid=UA-112925870-1&cid=1136151489.1683534236&jid=1146806706&_u=aEBAAEAAAAAAACAAI~&z=1892675501' because it violates the following Content Security Policy directive: "img-src https://api.observablehq.com https://.static.observableusercontent.com https://static.observablehq.com https://observablehq.com https://.githubusercontent.com https://.stripe.com https://avatars.observableusercontent.com https://.google-analytics.com https://www.google.com/ads/ga-audiences https://pubads.g.doubleclick.net https://.googletagmanager.com static.observableusercontent.com https://images.ctfassets.net https://.amazonaws.com data: blob:".

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header

Value

Content-Security-Policy

Strict-Transport-Security

max-age=86400; includeSubDomains

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

api.observablehq.com
avatars.observableusercontent.com
cdn.jsdelivr.net
cdn.observableusercontent.com
events.observablehq.com
fonts.googleapis.com
fonts.gstatic.com
o299802.ingest.sentry.io
observablehq.com
panningforbacon.static.observableusercontent.com
static.observableusercontent.com
stats.g.doubleclick.net
www.google-analytics.com
www.google.co.uk
www.google.com
www.googletagmanager.com
www.google.co.uk
1.1.1.1
2600:9000:21f3:8c00:10:f2df:eb80:93a1
2600:9000:2250:8200:3:3696:5cc0:93a1
2600:9000:2490:9200:1c:df24:ee80:93a1
2606:4700:10::6816:14dc
2606:4700:3037::6815:5381
2a00:1450:4001:806::2003
2a00:1450:4001:812::2008
2a00:1450:4001:829::200a
2a00:1450:4001:830::200e
2a00:1450:4001:831::2004
2a00:1450:400c:c09::9c
2a04:4e42:400::485
34.120.195.249
001c07ea0f7c7c6d944d3410b67c072d479624f6f8b1791b3d1434a64dacab4c
02999094a87b41ba0b47a999698e001265146779da74d3100013523be75db063
03c4755300fe72016a2aa5266af62ba403bd0cbf116c339121c23b3028c58e56
0707cbedacef7fa0bdb672839dad8e20217521146d9ad469eb9d31a11f6c32df
0710cdd8553d4317f62061043798c61848243bed26b9a416a189d38626ba771e
0938105b997e32b9007a57ae6c2de676c9ad92b607b77867899a66f7d208af09
09a7c46627a7dcef3bb8f698a29aae1d2941f139c08b5d0d998d632742e24589
0ce31e8ae148da374b1c90e96d5519c361fefe1e811525f2878b7cf049706a81
0f35566b3755f142daf2ad71e55f781a2ee731688a1a6cac131457cb2e1b4c8c
0f5407db81f821bea316a27c8a11153a71fab69b73912e05dbcb72623e1534a8
17081f34bd8b87c1e30ad964c6d0de781511c64ca47d2b0578a21e7219b13468
18f337fc2d58d8903de77acb9f7a23b3e0e06f6f33f65bc0c59fe285e5018370
1bb91f378be145a0375c6e44d194961176e76faffb7944e347a9641ccdef7ffe
242e809c8c902f9079b8300729c5314802a8740ee48e87dab00b2e58cdc13a0a
25864a074202679fd1276b843ff161e6c33e74175b1e39211bcb7f835b85a6c2
27333749072042eebf5eab75022ec4d663b07c92de8e078e162e2c1aa38b02c9
27c6943c0f84283d4d840c57a685cb1961e10cad9d4ef33fc64f4db3d3e5241b
29a622bf67aa7638b76c4fac868f11513a07efff8677b2f35e24fa21567beb84
2b06470879aa0a2d8b63022c63b6fbef3b07b87713c425a63a941ea15d1fea69
2c93a915352de4738d608a1076830aa50e03affa806e198e4b04017eccf36835
31ad23e685c7cdb1ec23e1cd84d00588702c2ed6c87d3bf9ddeb15448cbac9ec
375e4b04c33df14a5b3cd0c0246ffbc5fd36da58f07497ccf9a19ae1faa62634
379085e3c9dcf41a87dfaafde39df8f60d7470441cf239409fb38d8675885174
3b22a0d959ef2b028181ad1d46826cbe4050f01b335edc517fec25b433478335
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observablehq.com Open in urlscan Pro 2606:4700:10::6816:14dc Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

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Page Title

Detected technologies

Page Statistics

128 Requests

99 %HTTPS

86 %IPv6

11 Domains

16 Subdomains

15 IPs

4 Countries

2842 kBTransfer

9361 kBSize

5 Cookies

4 Outgoing links

Redirected requests

128 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 1 data transactions

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observablehq.com Open in urlscan Pro
2606:4700:10::6816:14dc Public Scan

Screenshot
Live screenshot

Full Image

128
Requests

99 %
HTTPS

86 %
IPv6

11
Domains

16
Subdomains

15
IPs

4
Countries

2842 kB
Transfer

9361 kB
Size

5
Cookies

128 HTTP transactions
1 data transactions