www.3blue1brown.com Open in urlscan Pro
2a05:d014:58f:6200::64 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
http://www.3blue1brown.com/
Effective URL:
https://www.3blue1brown.com/
Submission: On October 02 via api (October 2nd 2024, 3:38:22 pm UTC) from US — Scanned from DE

Summary HTTP 87 Redirects Links 20 Behaviour Indicators

Summary

This website contacted 10 IPs in 3 countries across 10 domains to perform 87 HTTP transactions. The main IP is 2a05:d014:58f:6200::64, located in Frankfurt am Main, Germany and belongs to AMAZON-02, US. The main domain is www.3blue1brown.com.
TLS certificate: Issued by E5 on September 9th 2024. Valid for: 3 months.

This is the only time www.3blue1brown.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
53	2a05:d014:58f... 2a05:d014:58f:6200::64	16509 (AMAZON-02) (AMAZON-02)
3	2606:4700:303... 2606:4700:3037::ac43:8ef5	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2a00:1450:400... 2a00:1450:4001:810::2008	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:81c::200e	15169 (GOOGLE) (GOOGLE)
3	142.250.185.227 142.250.185.227	15169 (GOOGLE) (GOOGLE)
21	2600:3c03::f0... 2600:3c03::f03c:92ff:fe6e:7ea0	63949 (AKAMAI-LI...) (AKAMAI-LINODE-AP Akamai Connected Cloud)
1	172.64.150.56 172.64.150.56	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2001:4860:480... 2001:4860:4802:34::36	15169 (GOOGLE) (GOOGLE)
2	34.120.195.249 34.120.195.249	396982 (GOOGLE-CL...) (GOOGLE-CLOUD-PLATFORM)
1	104.16.237.243 104.16.237.243	13335 (CLOUDFLAR...) (CLOUDFLARENET)
87	10

53 2a05:d014:58f:6200::64 (Frankfurt am Main, Germany)

ASN16509 (AMAZON-02, US)

www.3blue1brown.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 2606:4700:3037::ac43:8ef5 (United States)

ASN13335 (CLOUDFLARENET, US)

use.fontawesome.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:810::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

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

1 2a00:1450:4001:81c::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

img.youtube.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 142.250.185.227 (United States)

ASN15169 (GOOGLE, US)
PTR: fra16s53-in-f3.1e100.net

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

21 2600:3c03::f03c:92ff:fe6e:7ea0 (Cedar Knolls, United States)

ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG)

3b1b-posts.us-east-1.linodeobjects.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 172.64.150.56 (San Francisco, United States)

ASN13335 (CLOUDFLARENET, US)

3blue1brown.substack.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2001:4860:4802:34::36 (United States)

ASN15169 (GOOGLE, US)

region1.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 34.120.195.249 (Kansas City, United States)

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

o932861.ingest.sentry.io	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 104.16.237.243 (None, )

ASN13335 (CLOUDFLARENET, US)

blockchain.info	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
53	3blue1brown.com www.3blue1brown.com	954 KB
21	linodeobjects.com 3b1b-posts.us-east-1.linodeobjects.com	3 MB
3	gstatic.com fonts.gstatic.com	52 KB
3	fontawesome.com use.fontawesome.com — Cisco Umbrella Rank: 1486	276 KB
2	sentry.io o932861.ingest.sentry.io	398 B
1	blockchain.info blockchain.info — Cisco Umbrella Rank: 65412	2 KB
1	google-analytics.com region1.google-analytics.com — Cisco Umbrella Rank: 3391
1	substack.com 3blue1brown.substack.com
1	youtube.com img.youtube.com — Cisco Umbrella Rank: 1786	140 KB
1	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 57	98 KB
87	10

	Domain	Requested by
53	www.3blue1brown.com	www.3blue1brown.com
21	3b1b-posts.us-east-1.linodeobjects.com	www.3blue1brown.com
3	fonts.gstatic.com	www.3blue1brown.com
3	use.fontawesome.com	www.3blue1brown.com use.fontawesome.com
2	o932861.ingest.sentry.io	www.3blue1brown.com
1	blockchain.info	www.3blue1brown.com
1	region1.google-analytics.com	www.googletagmanager.com
1	3blue1brown.substack.com	www.3blue1brown.com
1	img.youtube.com	www.3blue1brown.com
1	www.googletagmanager.com	www.3blue1brown.com
87	10

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

Domain
store.dftba.com
www.youtube.com
3blue1brown.substack.com
www.patreon.com
twitter.com
www.instagram.com
www.tiktok.com
www.reddit.com
www.facebook.com
space.bilibili.com
youtu.be
www.blockchain.com

Subject Issuer	Validity	Valid
3b1b.co E5	`2024-09-09` - `2024-12-08`	3 months	crt.sh
use.fontawesome.com WE1	`2024-09-09` - `2024-12-09`	3 months	crt.sh
*.google-analytics.com WR2	`2024-09-16` - `2024-12-09`	3 months	crt.sh
*.google.com WR2	`2024-09-16` - `2024-12-09`	3 months	crt.sh
*.gstatic.com WR2	`2024-09-16` - `2024-12-09`	3 months	crt.sh
us-east-1.linodeobjects.com R10	`2024-09-19` - `2024-12-18`	3 months	crt.sh
substack.com WE1	`2024-08-13` - `2024-11-11`	3 months	crt.sh
ingest.sentry.io DigiCert Global G2 TLS RSA SHA256 2020 CA1	`2023-11-02` - `2024-12-02`	a year	crt.sh
www.blockchain.com DigiCert Global G2 TLS RSA SHA256 2020 CA1	`2023-10-12` - `2024-11-05`	a year	crt.sh

This page contains 2 frames:

Primary Page: https://www.3blue1brown.com/
Frame ID: FDE07AA412D384FF225FA73EE899445F
Requests: 86 HTTP requests in this frame

Frame: https://3blue1brown.substack.com/embed
Frame ID: D17B10687E541CA54A817144C412FBC8
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

3Blue1Brown

Page URL History Show full URLs

http://www.3blue1brown.com/ HTTP 307
https://www.3blue1brown.com/ Page URL

Detected technologies

Font Awesome (Font Scripts) Expand

Overall confidence: 100%
Detected patterns

<link[^>]* href=[^>]*?(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:.*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtag/js

Page Statistics

87
Requests

100 %
HTTPS

60 %
IPv6

10
Domains

10
Subdomains

10
IPs

3
Countries

4983 kB
Transfer

14081 kB
Size

5
Cookies

20 Outgoing links

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

URL: https://store.dftba.com/collections/3blue1brown
Title: Store

Search URL Search Domain Scan URL

URL: https://www.youtube.com/3blue1brown

Search URL Search Domain Scan URL

URL: https://3blue1brown.substack.com/

Search URL Search Domain Scan URL

URL: https://www.patreon.com/3blue1brown

Search URL Search Domain Scan URL

URL: https://twitter.com/3blue1brown

Search URL Search Domain Scan URL

URL: https://www.instagram.com/3blue1brown/

Search URL Search Domain Scan URL

URL: https://www.youtube.com/@GrantSanderson

Search URL Search Domain Scan URL

URL: https://www.tiktok.com/@3blue1brown

Search URL Search Domain Scan URL

URL: https://www.reddit.com/r/3Blue1Brown/

Search URL Search Domain Scan URL

URL: http://www.facebook.com/3blue1brown

Search URL Search Domain Scan URL

URL: https://space.bilibili.com/88461692/#/

Search URL Search Domain Scan URL

URL: https://3blue1brown.substack.com/feed

Search URL Search Domain Scan URL

URL: http://youtu.be/9-Jl0dxWQs8
Title: Latest video: How might LLMs store facts | Chapter 7, Deep Learning

Search URL Search Domain Scan URL

URL: https://www.blockchain.com/btc/tx/7dea4ee6206a400d2ba709bf7541bddc8b218f948e7a0d158a3c1f508b0d5473
Title: 7dea4ee620…508b0d5473bc1…xf pays 1CM…uU (+1)0.0723 BTC ($4,470.93)

Search URL Search Domain Scan URL

URL: https://www.blockchain.com/btc/tx/de34e0f240de24979e2f317c18eaa4395ffb60d472c3f211de1b183f4ffd69af
Title: de34e0f240…3f4ffd69afbc1…xn (+1) pays bc1…fm (+10)0.0825 BTC ($5,096.44)

Search URL Search Domain Scan URL

URL: https://www.blockchain.com/btc/tx/7c52983a0e2872b8470178d26ab8842d6e2bdaf336e5bbbe5dcb142885bc5e14
Title: 7c52983a0e…2885bc5e14bc1…wc pays 12Z…Eg (+1)0.0581 BTC ($3,593.87)

Search URL Search Domain Scan URL

URL: https://www.blockchain.com/btc/tx/22eba5a978d871385ddd2227c9254ae9570de67aa5247c9921aebc424c2e207a
Title: 22eba5a978…424c2e207abc1…w8 pays 19i…XQ (+1)1.6347 BTC ($101,041.64)

Search URL Search Domain Scan URL

URL: https://www.blockchain.com/btc/tx/23792f18cc0bb4b0dd2954bb89daa4c9840efbcab314e62d4f87d818371cde52
Title: 23792f18cc…18371cde5218E…4N pays bc1…s0 (+1)0.0079 BTC ($489.31)

Search URL Search Domain Scan URL

URL: https://www.blockchain.com/btc/tx/67762544cab475579fa84ee533fbc8871ae9fa5f2645c363f951dd4ea0f5773c
Title: 67762544ca…4ea0f5773cbc1…tm pays bc1…020.0001 BTC ($5.47)

Search URL Search Domain Scan URL

URL: https://www.blockchain.com/btc/tx/25ee1a84595536840225c44e733e45ee8564aa72827eed012175d0a9f2bf763f
Title: 25ee1a8459…a9f2bf763fbc1…ld (+2) pays 1JN…oh (+1)0.355 BTC ($21,944.75)

Search URL Search Domain Scan URL

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

http://www.3blue1brown.com/ HTTP 307
https://www.3blue1brown.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

87 HTTP transactions
0 data transactions

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

GET
H2

200

Primary Request / Show response
www.3blue1brown.com/
Redirect Chain

http://www.3blue1brown.com/
https://www.3blue1brown.com/

307 KB
64 KB

109ms
23ms

Document
text/html

2a05:d014:58f:6200::64
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://www.3blue1brown.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a05:d014:58f:6200::64 Frankfurt am Main, Germany, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Netlify /

Resource Hash

a1e89900340f85854040a09fdc7ebc48d37314d44a1170ac93e5e853c6d7a7e4

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Response headers

accept-ranges: bytes
age: 84122
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; hit
content-encoding: br
content-length: 65290
content-type: text/html; charset=UTF-8
date: Wed, 02 Oct 2024 15:38:12 GMT
etag: "bb8953bc94c9165061e1b3bb4f49801d-ssl-df"
netlify-vary: cookie=__next_preview_data:presence|__prerender_bypass:presence
server: Netlify
strict-transport-security: max-age=31536000
vary: Accept-Encoding
x-nf-request-id: 01J96Y3FG19CDCJKRDQ0JD568D

Redirect headers

Location: https://www.3blue1brown.com/
Non-Authoritative-Reason: HttpsUpgrades

GET
H2 200 all.css
use.fontawesome.com/releases/v6.1.1/css/ 98 KB
21 KB 108ms
57ms Stylesheet
text/css 2606:4700:3037::ac43:8ef5
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://use.fontawesome.com/releases/v6.1.1/css/all.css
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700:3037::ac43:8ef5 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 0df5a33710e433de1f5415b1d47e4130ca7466aee5b81955f1045c4844bbb3ed

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://www.3blue1brown.com/

Response headers

cache-control: max-age=31556926
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
cf-cache-status: HIT
etag: W/"6386fb409d4a2abc96eee7be8f6d4cc4"
age: 122622
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=RjG2gy6XbKDvS5O5Cx6U1nnrD%2FgnBQ4cNyylyZp7sLWv%2FQHXi1vR2YjRRyk4m45FDsptNGSWdLsko9lxjlU%2BmxV2ex%2BN3JTG0ubmXMOJN6sV8aXGL8r2f3OeYhAlA%2BefJMEhd8%2FHl06EOWh1Z8UgyIDR"}],"group":"cf-nel","max_age":604800}
cf-ray: 8cc5c736fcfedba5-FRA
date: Wed, 02 Oct 2024 15:38:12 GMT
content-type: text/css
last-modified: Fri, 22 Sep 2023 01:46:14 GMT
vary: Accept-Encoding
server: cloudflare

GET
H2 200 js Show response
www.googletagmanager.com/gtag/ 284 KB
98 KB 144ms
74ms Script
application/javascript 2a00:1450:4001:810::2008
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.googletagmanager.com/gtag/js?id=G-907C32EXHD

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:810::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

4e4aafb082752c2157e2ec85f59f03bfef9b3d398603632b6a50c6c6c73b6696

Security Headers

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

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://www.3blue1brown.com/

Response headers

content-encoding: br
report-to: {"group":"coop_reporting","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/scaffolding/ascgcycc:838:0"}],}
expires: Wed, 02 Oct 2024 15:38:12 GMT
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date: Wed, 02 Oct 2024 15:38:12 GMT
content-type: application/javascript; charset=UTF-8
vary: Accept-Encoding
access-control-allow-headers: Cache-Control
strict-transport-security: max-age=31536000; includeSubDomains
cache-control: private, max-age=900
cross-origin-resource-policy: cross-origin
access-control-allow-credentials: true
content-security-policy-report-only: script-src 'none'; form-action 'none'; frame-src 'none'; report-uri https://csp.withgoogle.com/csp/scaffolding/ascgcycc:838:0
access-control-allow-origin: *
cross-origin-opener-policy-report-only: same-origin; report-to=coop_reporting
content-length: 99799
x-xss-protection: 0
server: Google Tag Manager

GET
H2 200 b165666056315602.css
www.3blue1brown.com/_next/static/css/ 27 KB
4 KB 37ms
33ms Stylesheet
text/css 2a05:d014:58f:6200::64
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://www.3blue1brown.com/_next/static/css/b165666056315602.css

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a05:d014:58f:6200::64 Frankfurt am Main, Germany, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Netlify /

Resource Hash

53019d73823a64a4ec811daf64d3805ef7fae06b5e09ce45e988e4f22f1fd6e9

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://www.3blue1brown.com/

Response headers

strict-transport-security: max-age=31536000
cache-control: public,max-age=0,must-revalidate
content-encoding: br
etag: "d9598701835b56d2c0d2d0bbf1b693dd-ssl-df"
age: 8520
netlify-vary: cookie=__next_preview_data:presence|__prerender_bypass:presence
accept-ranges: bytes
content-length: 4431
x-nf-request-id: 01J96Y3FH87WGNRW4DRX61QJ4C
cache-status: "Netlify Edge"; hit
date: Wed, 02 Oct 2024 15:38:12 GMT
content-type: text/css; charset=UTF-8
vary: Accept-Encoding
server: Netlify

GET
H2 200 dc74d41d53a5d01c.css
www.3blue1brown.com/_next/static/css/ 36 KB
7 KB 36ms
33ms Stylesheet
text/css 2a05:d014:58f:6200::64
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://www.3blue1brown.com/_next/static/css/dc74d41d53a5d01c.css

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a05:d014:58f:6200::64 Frankfurt am Main, Germany, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Netlify /

Resource Hash

b58360cfae7f29d3a7fadbe2ed7a0504bd93cda504d23a34d34356c49c7f6798

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://www.3blue1brown.com/

Response headers

strict-transport-security: max-age=31536000
cache-control: public,max-age=0,must-revalidate
content-encoding: br
etag: "a4761413cb9d8542674b3df0f341bd0d-ssl-df"
age: 8520
netlify-vary: cookie=__next_preview_data:presence|__prerender_bypass:presence
accept-ranges: bytes
content-length: 7149
x-nf-request-id: 01J96Y3FH8PAA2QBQX8M9QMYB3
cache-status: "Netlify Edge"; hit
date: Wed, 02 Oct 2024 15:38:12 GMT
content-type: text/css; charset=UTF-8
vary: Accept-Encoding
server: Netlify

GET
H2 200 webpack-2803c7b99464701e.js Show response
www.3blue1brown.com/_next/static/chunks/ 6 KB
3 KB 116ms
111ms Script
application/javascript 2a05:d014:58f:6200::64
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://www.3blue1brown.com/_next/static/chunks/webpack-2803c7b99464701e.js

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a05:d014:58f:6200::64 Frankfurt am Main, Germany, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Netlify /

Resource Hash

5db334c1a9bc061a048603e5f12e4d642918a7175b678faa19eecade5cac0c14

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://www.3blue1brown.com/

Response headers

strict-transport-security: max-age=31536000
cache-control: public,max-age=0,must-revalidate
content-encoding: br
etag: "b3003e3323180beaf617696165e6fade-ssl-df"
age: 8521
netlify-vary: cookie=__next_preview_data:presence|__prerender_bypass:presence
accept-ranges: bytes
content-length: 2794
x-nf-request-id: 01J96Y3FN0HAMP8M7ZWQ2GW036
cache-status: "Netlify Edge"; hit
date: Wed, 02 Oct 2024 15:38:13 GMT
content-type: application/javascript; charset=UTF-8
vary: Accept-Encoding
server: Netlify

GET
H2 200 framework-67ffd913504c6fc8.js Show response
www.3blue1brown.com/_next/static/chunks/ 138 KB
43 KB 60ms
55ms Script
application/javascript 2a05:d014:58f:6200::64
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://www.3blue1brown.com/_next/static/chunks/framework-67ffd913504c6fc8.js

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a05:d014:58f:6200::64 Frankfurt am Main, Germany, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Netlify /

Resource Hash

dd790f49358c61ccd3bff3505d3a13e9b93390e98087d1876eed40b3f7c3f63e

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://www.3blue1brown.com/

Response headers

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last-modified: Wed, 31 Jan 2024 23:10:46 GMT
content-type: font/woff2
cache-control: public, max-age=31536000
timing-allow-origin: *
cross-origin-opener-policy: same-origin; report-to="apps-themes"
cross-origin-resource-policy: cross-origin
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
accept-ranges: bytes
access-control-allow-origin: *
content-length: 37676
x-xss-protection: 0
server: sffe

GET
H3 200 pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2
fonts.gstatic.com/s/poppins/v21/ 8 KB
8 KB 110ms
38ms Font
font/woff2 142.250.185.227
GOOGLE

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Full URL

https://fonts.gstatic.com/s/poppins/v21/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

QUIC, , AES_128_GCM

Server

142.250.185.227 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

fra16s53-in-f3.1e100.net

Software

sffe /

Resource Hash

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Security Headers

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Request headers

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Origin: https://www.3blue1brown.com
Referer: https://www.3blue1brown.com/

Response headers

age: 113557
report-to: {"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
x-content-type-options: nosniff
expires: Wed, 01 Oct 2025 08:05:36 GMT
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date: Tue, 01 Oct 2024 08:05:36 GMT
last-modified: Fri, 22 Mar 2024 00:00:51 GMT
content-type: font/woff2
cache-control: public, max-age=31536000
timing-allow-origin: *
cross-origin-opener-policy: same-origin; report-to="apps-themes"
cross-origin-resource-policy: cross-origin
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accept-ranges: bytes
access-control-allow-origin: *
content-length: 7900
x-xss-protection: 0
server: sffe

GET
H2 200 fa-brands-400.woff2
use.fontawesome.com/releases/v6.1.1/webfonts/ 103 KB
104 KB 381ms
60ms Font
font/woff2 2606:4700:3037::ac43:8ef5
CLOUDFLARENET

General

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Show headers Download Go to

Full URL: https://use.fontawesome.com/releases/v6.1.1/webfonts/fa-brands-400.woff2
Requested by: Host: use.fontawesome.com
URL: https://use.fontawesome.com/releases/v6.1.1/css/all.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700:3037::ac43:8ef5 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
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Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Origin: https://www.3blue1brown.com
Referer: https://use.fontawesome.com/releases/v6.1.1/css/all.css

Response headers

cache-control: max-age=31556926
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cf-cache-status: HIT
etag: "cd2b4095e9ce66cde642c3502a4022d9"
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accept-ranges: bytes
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content-length: 105536
date: Wed, 02 Oct 2024 15:38:13 GMT
content-type: font/woff2
last-modified: Fri, 22 Sep 2023 01:46:17 GMT
vary: Origin, Accept-Encoding
server: cloudflare

GET
H2 200 fa-solid-900.woff2
use.fontawesome.com/releases/v6.1.1/webfonts/ 151 KB
151 KB 355ms
34ms Font
font/woff2 2606:4700:3037::ac43:8ef5
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://use.fontawesome.com/releases/v6.1.1/webfonts/fa-solid-900.woff2
Requested by: Host: use.fontawesome.com
URL: https://use.fontawesome.com/releases/v6.1.1/css/all.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700:3037::ac43:8ef5 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: d76fb4e841748a3f6bc63efa23156e02631c283bf41f84efcbdaf339ea3e1b73

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Origin: https://www.3blue1brown.com
Referer: https://use.fontawesome.com/releases/v6.1.1/css/all.css

Response headers

cache-control: max-age=31556926
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
cf-cache-status: HIT
etag: "55b416a8df21f9f987aa352f10d1343b"
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accept-ranges: bytes
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content-length: 154228
date: Wed, 02 Oct 2024 15:38:13 GMT
content-type: font/woff2
last-modified: Fri, 22 Sep 2023 01:46:18 GMT
vary: Origin, Accept-Encoding
server: cloudflare

GET
H3 200 pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2
fonts.gstatic.com/s/poppins/v21/ 8 KB
8 KB 108ms
37ms Font
font/woff2 142.250.185.227
GOOGLE

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Full URL

https://fonts.gstatic.com/s/poppins/v21/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

QUIC, , AES_128_GCM

Server

142.250.185.227 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

fra16s53-in-f3.1e100.net

Software

sffe /

Resource Hash

289e0afc8be731a86822349e54557296f145926496bd2138db1bac0db77f77a2

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Origin: https://www.3blue1brown.com
Referer: https://www.3blue1brown.com/

Response headers

age: 111307
report-to: {"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
x-content-type-options: nosniff
expires: Wed, 01 Oct 2025 08:43:06 GMT
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date: Tue, 01 Oct 2024 08:43:06 GMT
last-modified: Fri, 22 Mar 2024 00:00:33 GMT
content-type: font/woff2
cache-control: public, max-age=31536000
timing-allow-origin: *
cross-origin-opener-policy: same-origin; report-to="apps-themes"
cross-origin-resource-policy: cross-origin
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accept-ranges: bytes
access-control-allow-origin: *
content-length: 7740
x-xss-protection: 0
server: sffe

GET
H/1.1 206
Partial Content eola-preview.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 32 KB
0 375ms
113ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

Check archive.org

Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/eola-preview.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=0-

Response headers

x-amz-meta-s3cmd-attrs: atime:1630678683/ctime:1630678683/gid:116/md5:8f40bac4bbd1b1e276701e290c7a5418/mode:33188/mtime:1630678683/uid:1001
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Accept-Ranges: bytes
Content-Length: 1602224
Date: Wed, 02 Oct 2024 15:38:13 GMT
x-rgw-object-type: Normal
Content-Type: video/mp4
Last-Modified: Fri, 03 Sep 2021 14:18:29 GMT

GET
H/1.1 206
Partial Content 5.20-6.20-trimmed.mp4
3b1b-posts.us-east-1.linodeobjects.com/content/lessons/2017/derivatives-power-rule/figures/ 32 KB
0 375ms
113ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

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Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/content/lessons/2017/derivatives-power-rule/figures/5.20-6.20-trimmed.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=0-

Response headers

x-amz-meta-s3cmd-attrs: atime:1626275829/ctime:1626275829/gid:116/md5:331ff9cc18f953483b43ef23d26eb0da/mode:33188/mtime:1626275829/uid:1001
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x-amz-request-id: tx000000ca248a13213b025-0066fd68e5-c08b890d-default
Accept-Ranges: bytes
Content-Length: 385702
Date: Wed, 02 Oct 2024 15:38:13 GMT
x-rgw-object-type: Normal
Content-Type: video/mp4
Last-Modified: Wed, 14 Jul 2021 15:17:31 GMT

GET
H/1.1 206
Partial Content clacks.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 32 KB
0 379ms
114ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

Check archive.org

Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/clacks.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=0-

Response headers

x-amz-meta-s3cmd-attrs: atime:1627443075/ctime:1627443075/gid:116/md5:9311e062df927aed8bdfc8fd5862d5f6/mode:33188/mtime:1627443075/uid:1001
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Accept-Ranges: bytes
Content-Length: 355625
Date: Wed, 02 Oct 2024 15:38:13 GMT
x-rgw-object-type: Normal
Content-Type: video/mp4
Last-Modified: Wed, 28 Jul 2021 03:31:42 GMT

GET
H/1.1 206
Partial Content fourier-pi.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 32 KB
0 409ms
134ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

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Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/fourier-pi.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=0-

Response headers

x-amz-meta-s3cmd-attrs: atime:1628019004/ctime:1628019004/gid:116/md5:03d8a19860f36be5daf6a556f16b639d/mode:33188/mtime:1628019004/uid:1001
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x-amz-request-id: tx00000ee646419c842042e-0066fd68e5-bd2721a8-default
Accept-Ranges: bytes
Content-Length: 2670671
Date: Wed, 02 Oct 2024 15:38:13 GMT
x-rgw-object-type: Normal
Content-Type: video/mp4
Last-Modified: Tue, 03 Aug 2021 19:30:28 GMT

GET
H/1.1 206
Partial Content prime-spirals.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 32 KB
0 446ms
144ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

Check archive.org

Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/prime-spirals.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=0-

Response headers

x-amz-meta-s3cmd-attrs: atime:1630678683/ctime:1630678683/gid:116/md5:d5794f9fd14cd9c0d9a60b1ee8f84097/mode:33188/mtime:1630678683/uid:1001
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X-Amz-Storage-Class: STANDARD
x-amz-request-id: tx00000cf212ac3587bcbf6-0066fd68e5-c0b6f3a7-default
Accept-Ranges: bytes
Content-Length: 1292943
Date: Wed, 02 Oct 2024 15:38:13 GMT
x-rgw-object-type: Normal
Content-Type: video/mp4
Last-Modified: Fri, 03 Sep 2021 14:18:29 GMT

GET
H/1.1 206
Partial Content sudanese-band-loop.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 32 KB
0 445ms
145ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

Check archive.org

Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/sudanese-band-loop.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=0-

Response headers

x-amz-meta-s3cmd-attrs: atime:1627443075/ctime:1627443075/gid:116/md5:1f876e47f17dac500ffe33676d4e118e/mode:33188/mtime:1627443075/uid:1001
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Accept-Ranges: bytes
Content-Length: 789953
Date: Wed, 02 Oct 2024 15:38:13 GMT
x-rgw-object-type: Normal
Content-Type: video/mp4
Last-Modified: Wed, 28 Jul 2021 03:31:43 GMT

GET
H/1.1 206
Partial Content sphere-area.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 32 KB
0 423ms
163ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

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Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/sphere-area.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=0-

Response headers

x-amz-meta-s3cmd-attrs: atime:1627491073/ctime:1627491073/gid:116/md5:c21b7f5793689c63e153783c86caf0b6/mode:33188/mtime:1627491073/uid:1001
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Content-Range: bytes 0-2666598/2666599
X-Amz-Storage-Class: STANDARD
x-amz-request-id: tx00000d11e411f6e155898-0066fd68e5-bb077ec0-default
Accept-Ranges: bytes
Content-Length: 2666599
Date: Wed, 02 Oct 2024 15:38:13 GMT
x-rgw-object-type: Normal
Content-Type: video/mp4
Last-Modified: Wed, 28 Jul 2021 16:51:34 GMT

GET
H3 200 embed
3blue1brown.substack.com/ Frame D17B 0
0 395ms
332ms Document
text/html 172.64.150.56
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://3blue1brown.substack.com/embed

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/

Protocol

Security

QUIC, , AES_128_GCM

Server

172.64.150.56 San Francisco, United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare / Express

Resource Hash

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

Referer: https://www.3blue1brown.com/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Response headers

cache-control: no-cache
cf-cache-status: EXPIRED
cf-ray: 8cc5c7382bd2d36a-FRA
content-encoding: gzip
content-type: text/html; charset=utf-8
date: Wed, 02 Oct 2024 15:38:13 GMT
etag: W/"100f6-qYUnY5C3wL6el4iyL1WdU3LSji0"
server: cloudflare
strict-transport-security: max-age=31536000
vary: Accept-Encoding
x-cluster: substack
x-deploy: c4912bf814
x-powered-by: Express
x-served-by: Substack
x-service: web
x-sub: 3blue1brown

POST
H2 204 collect
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29 KB 420ms
161ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/eola-preview.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
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Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
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Request headers

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Response headers

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x-rgw-object-type: Normal
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GET
H/1.1 206
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3b1b-posts.us-east-1.linodeobjects.com/content/lessons/2017/derivatives-power-rule/figures/ 25 KB
25 KB 898ms
667ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/content/lessons/2017/derivatives-power-rule/figures/5.20-6.20-trimmed.mp4
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Request headers

Referer: https://www.3blue1brown.com/
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x-rgw-object-type: Normal
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GET
H/1.1 206
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28 KB 384ms
138ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/clacks.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
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Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
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Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
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x-rgw-object-type: Normal
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Content-Type: video/mp4

GET
H/1.1 206
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17 KB 434ms
170ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/fourier-pi.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
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Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
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Request headers

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Response headers

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x-rgw-object-type: Normal
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Content-Type: video/mp4

GET
H/1.1 206
Partial Content sudanese-band-loop.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 35 KB
36 KB 460ms
183ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/sudanese-band-loop.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
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Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
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Response headers

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Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
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Content-Type: video/mp4

GET
H/1.1 206
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3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 47 KB
47 KB 193ms
191ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/prime-spirals.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
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Request headers

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Response headers

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Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
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Content-Type: video/mp4

GET
H/1.1 206
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3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 1 MB
0 137ms
136ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/eola-preview.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
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Response headers

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Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
Last-Modified: Fri, 03 Sep 2021 14:18:29 GMT
Content-Type: video/mp4

GET
H/1.1 206
Partial Content clacks.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 288 KB
0 236ms
173ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/clacks.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
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Response headers

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Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
Last-Modified: Wed, 28 Jul 2021 03:31:42 GMT
Content-Type: video/mp4

GET
H/1.1 206
Partial Content sphere-area.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 12 KB
13 KB 314ms
197ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/sphere-area.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
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Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
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Software: /
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Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
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Response headers

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Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
Last-Modified: Wed, 28 Jul 2021 16:51:34 GMT
Content-Type: video/mp4

GET
H/1.1 206
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3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 3 MB
0 240ms
149ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/fourier-pi.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=32768-

Response headers

x-amz-meta-s3cmd-attrs: atime:1628019004/ctime:1628019004/gid:116/md5:03d8a19860f36be5daf6a556f16b639d/mode:33188/mtime:1628019004/uid:1001
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Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
Last-Modified: Tue, 03 Aug 2021 19:30:28 GMT
Content-Type: video/mp4

GET
H/1.1 206
Partial Content sudanese-band-loop.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 739 KB
705 KB 193ms
193ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/sudanese-band-loop.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash: c8f55c4efed4721eb0efd5a650188f4131dbdc228831dcd0890e7fa3dcb8bc51

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=32768-

Response headers

x-amz-meta-s3cmd-attrs: atime:1627443075/ctime:1627443075/gid:116/md5:1f876e47f17dac500ffe33676d4e118e/mode:33188/mtime:1627443075/uid:1001
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Content-Length: 757185
Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
Last-Modified: Wed, 28 Jul 2021 03:31:43 GMT
Content-Type: video/mp4

GET
H/1.1 206
Partial Content prime-spirals.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 1 MB
0 148ms
148ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

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Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/prime-spirals.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=32768-

Response headers

x-amz-meta-s3cmd-attrs: atime:1630678683/ctime:1630678683/gid:116/md5:d5794f9fd14cd9c0d9a60b1ee8f84097/mode:33188/mtime:1630678683/uid:1001
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Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
Last-Modified: Fri, 03 Sep 2021 14:18:29 GMT
Content-Type: video/mp4

GET
H/1.1 206
Partial Content sphere-area.mp4
3b1b-posts.us-east-1.linodeobjects.com/featured-content/ 3 MB
3 MB 169ms
169ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

Check archive.org

Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/featured-content/sphere-area.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash: d2aea9f458cb64df6b7812728b7623034c27ca05b3e0d1b88cbbb683184570d7

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=32768-

Response headers

x-amz-meta-s3cmd-attrs: atime:1627491073/ctime:1627491073/gid:116/md5:c21b7f5793689c63e153783c86caf0b6/mode:33188/mtime:1627491073/uid:1001
ETag: "c21b7f5793689c63e153783c86caf0b6"
Content-Range: bytes 32768-2666598/2666599
X-Amz-Storage-Class: STANDARD
x-amz-request-id: tx000009d44720b7c2746ae-0066fd68e6-c025aada-default
Accept-Ranges: bytes
Content-Length: 2633831
Date: Wed, 02 Oct 2024 15:38:14 GMT
x-rgw-object-type: Normal
Last-Modified: Wed, 28 Jul 2021 16:51:34 GMT
Content-Type: video/mp4

GET
H/1.1 206
Partial Content 5.20-6.20-trimmed.mp4
3b1b-posts.us-east-1.linodeobjects.com/content/lessons/2017/derivatives-power-rule/figures/ 345 KB
0 180ms
180ms Media
video/mp4 2600:3c03::f03c:92ff:fe6e:7ea0
AKAMAI-LINODE-AP ...

General

Check archive.org

Show headers Download Go to

Full URL: https://3b1b-posts.us-east-1.linodeobjects.com/content/lessons/2017/derivatives-power-rule/figures/5.20-6.20-trimmed.mp4
Requested by: Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2600:3c03::f03c:92ff:fe6e:7ea0 Cedar Knolls, United States, ASN63949 (AKAMAI-LINODE-AP Akamai Connected Cloud, SG),
Reverse DNS
Software: /
Resource Hash

Request headers

Referer: https://www.3blue1brown.com/
Accept-Encoding: identity;q=1, *;q=0
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Range: bytes=32768-

Response headers

x-amz-meta-s3cmd-attrs: atime:1626275829/ctime:1626275829/gid:116/md5:331ff9cc18f953483b43ef23d26eb0da/mode:33188/mtime:1626275829/uid:1001
ETag: "331ff9cc18f953483b43ef23d26eb0da"
Content-Range: bytes 32768-385701/385702
X-Amz-Storage-Class: STANDARD
x-amz-request-id: tx00000e5014a515b6aab72-0066fd68e7-c0ba8a21-default
Accept-Ranges: bytes
Content-Length: 352934
Date: Wed, 02 Oct 2024 15:38:16 GMT
x-rgw-object-type: Normal
Last-Modified: Wed, 14 Jul 2021 15:17:31 GMT
Content-Type: video/mp4

GET
H2 200 favicon.png
www.3blue1brown.com/favicons/ 67 KB
67 KB 79ms
78ms Other
image/png 2a05:d014:58f:6200::64
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL

https://www.3blue1brown.com/favicons/favicon.png

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a05:d014:58f:6200::64 Frankfurt am Main, Germany, ASN16509 (AMAZON-02, US),

Reverse DNS

Software

Netlify /

Resource Hash

1e41eb97ae8b0a94bba5f787e67605009d509ce13023fd26721342f0b02f63f3

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://www.3blue1brown.com/

Response headers

strict-transport-security: max-age=31536000
cache-control: public,max-age=0,must-revalidate
etag: "85d9c8eccaa6412505143942b104132a-ssl"
age: 64800
netlify-vary: cookie=__next_preview_data:presence|__prerender_bypass:presence
accept-ranges: bytes
content-length: 68613
x-nf-request-id: 01J96Y3HKX9GDWMJ7GN52FTXNF
cache-status: "Netlify Edge"; hit
date: Wed, 02 Oct 2024 15:38:15 GMT
content-type: image/png
server: Netlify

POST
H2 200 / Show response
o932861.ingest.sentry.io/api/5881803/envelope/ 41 B
98 B 133ms
123ms Fetch
application/json 34.120.195.249
GOOGLE-CLOUD-PLAT...

General

Check archive.org

Show headers Download Go to

Full URL

https://o932861.ingest.sentry.io/api/5881803/envelope/?sentry_key=3ce68c63823641db95d7bd65d08db5d8&sentry_version=7

Requested by

Host: www.3blue1brown.com
URL: https://www.3blue1brown.com/_next/static/chunks/pages/_app-81c54062c81fe22a.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

34.120.195.249 Kansas City, United States, ASN396982 (GOOGLE-CLOUD-PLATFORM, US),

Reverse DNS

249.195.120.34.bc.googleusercontent.com

Software

nginx /

Resource Hash

d5912ff55704b5d0cedd5305c5cb2de87920b95c7ae4617c7bdcadec09ba8a62

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Content-Type: text/plain;charset=UTF-8
Referer: https://www.3blue1brown.com/

Response headers

strict-transport-security: max-age=31536000; includeSubDomains; preload
access-control-expose-headers: x-sentry-error,x-sentry-rate-limits,retry-after
cross-origin-resource-policy: cross-origin
via: 1.1 google
access-control-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 41
date: Wed, 02 Oct 2024 15:38:15 GMT
content-type: application/json
vary: origin, access-control-request-method, access-control-request-headers
server: nginx

Verdicts & Comments Add Verdict or Comment

21 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
.3blue1brown.com/	1970-01-21 09:34:03	Name: _ga_907C32EXHD Value: GS1.1.1727883493.1.0.1727883493.0.0.0
.3blue1brown.com/	1970-01-21 09:34:03	Name: _ga Value: GA1.1.833832778.1727883493
.blockchain.info/	1969-12-31 23:59:59	Name: _cfuvid Value: yTwghgnJCVtOM992I5S1iRoiqMkdDLIw0nskNfm8ELQ-1727883493760-0.0.1.1-604800000
3blue1brown.substack.com/	1970-01-21 00:08:08	Name: AWSALBTGCORS Value: NuuDIhWvddQXfR0i6Uc+L1skjc1/mBVG7K5ZhVGig5Ts+Pu/wGrYzR5mfS0458tkauceXxwh+i6rpRT4RBqLi0Pdm2ji0f3rSC1lzaMerEcKMGEnvM191sCMJ2ETmEtKr9dmUvg+T2ZZu7ttNsfPeOn9vn8IMPMeGfXVydvgG4eM
.substack.com/	1970-01-20 23:58:05	Name: __cf_bm Value: irsIgnFk9mhJc3qZgflVC1wSHK49McNRPExRIiuEwx8-1727883494-1.0.1.1-etroXyySt8DiJCPJ1dn6Y8wd_4ACxAlLHvqzMUqtRbkk7b91jAjpyS7FiuvB3F6Val8rQQlB3rzR4gnYluwKEA

1 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
rendering	error	URL: https://www.3blue1brown.com/_next/static/chunks/framework-67ffd913504c6fc8.js(Line 8) Message: Error: <svg> attribute height: Expected length, "auto".

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
Strict-Transport-Security	max-age=31536000

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.

3b1b-posts.us-east-1.linodeobjects.com
3blue1brown.substack.com
blockchain.info
fonts.gstatic.com
img.youtube.com
o932861.ingest.sentry.io
region1.google-analytics.com
use.fontawesome.com
www.3blue1brown.com
www.googletagmanager.com
104.16.237.243
142.250.185.227
172.64.150.56
2001:4860:4802:34::36
2600:3c03::f03c:92ff:fe6e:7ea0
2606:4700:3037::ac43:8ef5
2a00:1450:4001:810::2008
2a00:1450:4001:81c::200e
2a05:d014:58f:6200::64
34.120.195.249
016088ca2177095aa22777e8ed6bae5dc88d4e22b979bc5bcbabf32ca1e9827d
0df5a33710e433de1f5415b1d47e4130ca7466aee5b81955f1045c4844bbb3ed
0e446fd392807007f27e84f78f1c831aa5fd2f7554323e416dae6f2db75325bb
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ff645de023dddaf5d5104a1db22823a4d7f67c97e9b5a306907d52f9ff4e611a

www.3blue1brown.com Open in urlscan Pro 2a05:d014:58f:6200::64 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

87 Requests

100 %HTTPS

60 %IPv6

10 Domains

10 Subdomains

10 IPs

3 Countries

4983 kBTransfer

14081 kBSize

5 Cookies

20 Outgoing links

Page URL History

Redirected requests

87 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

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Response headers

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www.3blue1brown.com Open in urlscan Pro
2a05:d014:58f:6200::64 Public Scan

Screenshot
Live screenshot

Full Image

87
Requests

100 %
HTTPS

60 %
IPv6

10
Domains

10
Subdomains

10
IPs

3
Countries

4983 kB
Transfer

14081 kB
Size

5
Cookies

87 HTTP transactions
0 data transactions