Submitted URL: https://calvinrobinson.co.uk/
Effective URL: https://www.calvinrobinson.com/
Submission: On August 22 via api from US — Scanned from DE

Summary

This website contacted 9 IPs in 2 countries across 9 domains to perform 247 HTTP transactions. The main IP is 172.64.151.232, located in San Francisco, United States and belongs to CLOUDFLARENET, US. The main domain is www.calvinrobinson.com.
TLS certificate: Issued by E5 on July 30th 2024. Valid for: 3 months.
This is the only time www.calvinrobinson.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 15.197.225.128 16509 (AMAZON-02)
5 172.64.151.232 13335 (CLOUDFLAR...)
51 2600:9000:206... 16509 (AMAZON-02)
1 2a00:1450:400... 15169 (GOOGLE)
2 2a04:4e42:400... 54113 (FASTLY)
2 2606:4700::68... 13335 (CLOUDFLAR...)
1 13.33.219.205 16509 (AMAZON-02)
1 172.64.150.56 13335 (CLOUDFLAR...)
182 65.9.66.47 16509 (AMAZON-02)
247 9
Apex Domain
Subdomains
Transfer
233 substackcdn.com
substackcdn.com — Cisco Umbrella Rank: 19777
454 KB
5 calvinrobinson.com
www.calvinrobinson.com
16 KB
2 cloudflareinsights.com
static.cloudflareinsights.com — Cisco Umbrella Rank: 1223
14 KB
2 sentry-cdn.com
js.sentry-cdn.com — Cisco Umbrella Rank: 7016
browser.sentry-cdn.com
31 KB
1 substack.com
substack.com — Cisco Umbrella Rank: 17765
1 datadoghq-browser-agent.com
www.datadoghq-browser-agent.com — Cisco Umbrella Rank: 2536
51 KB
1 gstatic.com
fonts.gstatic.com
36 KB
1 calvinrobinson.co.uk
calvinrobinson.co.uk
308 B
0 google-analytics.com Failed
www.google-analytics.com Failed
247 9
Domain Requested by
233 substackcdn.com www.calvinrobinson.com
substackcdn.com
5 www.calvinrobinson.com www.calvinrobinson.com
2 static.cloudflareinsights.com www.calvinrobinson.com
1 browser.sentry-cdn.com js.sentry-cdn.com
1 substack.com substackcdn.com
1 www.datadoghq-browser-agent.com www.calvinrobinson.com
1 js.sentry-cdn.com www.calvinrobinson.com
1 fonts.gstatic.com www.calvinrobinson.com
1 calvinrobinson.co.uk 1 redirects
0 www.google-analytics.com Failed www.calvinrobinson.com
247 10

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

Domain
substack.com
Subject Issuer Validity Valid
www.calvinrobinson.com
E5
2024-07-30 -
2024-10-28
3 months crt.sh
substackcdn.com
Amazon RSA 2048 M02
2024-02-13 -
2025-03-13
a year crt.sh
*.gstatic.com
WR2
2024-07-30 -
2024-10-22
3 months crt.sh
*.sentry-cdn.com
GlobalSign Atlas R3 DV TLS CA 2024 Q2
2024-06-04 -
2025-07-06
a year crt.sh
cloudflareinsights.com
WE1
2024-07-06 -
2024-10-04
3 months crt.sh
*.datadoghq-browser-agent.com
DigiCert Global G2 TLS RSA SHA256 2020 CA1
2024-07-30 -
2025-08-03
a year crt.sh
substack.com
WE1
2024-08-13 -
2024-11-11
3 months crt.sh

This page contains 2 frames:

Primary Page: https://www.calvinrobinson.com/
Frame ID: C2A7E181F199CE1270B251AE0D275D05
Requests: 246 HTTP requests in this frame

Frame: https://substack.com/channel-frame
Frame ID: 0407981568E7B31F4CAB008AE00B09FA
Requests: 1 HTTP requests in this frame

Screenshot

Page Title

Fr Calvin Robinson | Substack

Page URL History Show full URLs

  1. https://calvinrobinson.co.uk/ HTTP 302
    https://www.calvinrobinson.com/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • react(?:-with-addons)?[.-]([\d.]*\d)[^/]*\.js

Overall confidence: 100%
Detected patterns
  • static\.cloudflareinsights\.com/beacon(?:\.min)?\.js

Page Statistics

247
Requests

99 %
HTTPS

44 %
IPv6

9
Domains

10
Subdomains

9
IPs

2
Countries

601 kB
Transfer

1316 kB
Size

12
Cookies

Page URL History

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

  1. https://calvinrobinson.co.uk/ HTTP 302
    https://www.calvinrobinson.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

247 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
www.calvinrobinson.com/
Redirect Chain
  • https://calvinrobinson.co.uk/
  • https://www.calvinrobinson.com/
77 KB
16 KB
Document
General
Full URL
https://www.calvinrobinson.com/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.64.151.232 San Francisco, United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare / Express
Resource Hash
d177722fa8c36704fda46c29447be1a46314d20ed8f21a4ccc0cc6de47d217fe
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Frame-Options sameorigin

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
no-cache
cf-cache-status
MISS
cf-ray
8b73ec339cb462cf-HAM
content-encoding
br
content-type
text/html; charset=utf-8
date
Thu, 22 Aug 2024 15:33:41 GMT
link
<https://substackcdn.com>; rel=preconnect
server
cloudflare
strict-transport-security
max-age=31536000
vary
Accept-Encoding
x-cluster
substack
x-deploy
ada9e02191
x-frame-options
sameorigin
x-powered-by
Express
x-served-by
Substack
x-service
web
x-sub
calvinrobinson

Redirect headers

Connection
close
Content-Length
54
Content-Type
text/html; charset=utf-8
Date
Thu, 22 Aug 2024 15:33:40 GMT
Location
https://www.calvinrobinson.com/
Server
ip-100-74-5-224.eu-west-2.compute.internal
Vary
Accept-Encoding
X-Request-Id
c45ab40c-2c3a-4d6d-b303-42f22dc14c46
welcome.48eb5d9d2b839d454355.css
substackcdn.com/bundle/theme/
33 KB
6 KB
Stylesheet
General
Full URL
https://substackcdn.com/bundle/theme/welcome.48eb5d9d2b839d454355.css
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
9317bd28828955347490f0ab71d94f96c5648b9edda328efcb06a7ad22e9c2e9

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 17:59:49 GMT
content-encoding
br
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
77633
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Tue, 18 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Wed, 21 Aug 2024 17:48:29 GMT
server
AmazonS3
etag
W/"48eb5d9d2b839d454355569cde1c70c6"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
pkm06pwv1-DXzkuQdV-uBS8uRXsFNRv9NTMFS3vGs0LAP4YQ0OrFMg==
color_links.33eb7c3bd37d78bc2dc3.css
substackcdn.com/bundle/theme/
2 KB
916 B
Stylesheet
General
Full URL
https://substackcdn.com/bundle/theme/color_links.33eb7c3bd37d78bc2dc3.css
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
d5c601aa9b482ec9dc03c2fe73909cf5b1504c16b91744c3a56f6c57eea4d84d

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 03:15:32 GMT
content-encoding
gzip
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
44290
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Mon, 17 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Tue, 20 Aug 2024 23:16:25 GMT
server
AmazonS3
etag
W/"33eb7c3bd37d78bc2dc39c14920dac7e"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
P0F8tO6mOOO8jeNUGb_JAi_iIzgrW8Fhia9OYScfFHjUGx_5pDjn6Q==
0QIvMX1D_JOuMwr7I_FMl_E.woff2
fonts.gstatic.com/s/lora/v32/
35 KB
36 KB
Font
General
Full URL
https://fonts.gstatic.com/s/lora/v32/0QIvMX1D_JOuMwr7I_FMl_E.woff2
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:812::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
sffe /
Resource Hash
963ef2b3b0a8b5db60d69df5814239c385bc4e8e8781c6c24bc7390457e1e6dc
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Referer
https://www.calvinrobinson.com/
Origin
https://www.calvinrobinson.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Tue, 20 Aug 2024 14:28:21 GMT
x-content-type-options
nosniff
age
176720
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
36036
x-xss-protection
0
last-modified
Tue, 21 Feb 2023 21:46:02 GMT
server
sffe
cross-origin-opener-policy
same-origin; report-to="apps-themes"
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
timing-allow-origin
*
expires
Wed, 20 Aug 2025 14:28:21 GMT
entry-73201f3b.css
substackcdn.com/bundle/assets/
10 KB
2 KB
Stylesheet
General
Full URL
https://substackcdn.com/bundle/assets/entry-73201f3b.css
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
73201f3b707191359892d55726ec9baf7ba75430a264db1fec725aa4f23316fc

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Wed, 21 Aug 2024 17:59:48 GMT
content-encoding
br
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
77634
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Tue, 18 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Wed, 21 Aug 2024 17:48:34 GMT
server
AmazonS3
etag
W/"c327922bac4f39c5198fb7ae59664e08"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
rDjLzxLCRG4tgExYblDUP9kfsN8uc_YHauH6vwifWdE3ChYEWnsvCQ==
responsive_img-51b02764.css
substackcdn.com/bundle/assets/
92 B
603 B
Stylesheet
General
Full URL
https://substackcdn.com/bundle/assets/responsive_img-51b02764.css
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
51b02764ec5dd7b6337c0ee7044ae5b5418d3a8605fe309d5a0927dcaa72aa05

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 01:05:48 GMT
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
52074
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
content-length
92
x-amz-expiration
expiry-date="Mon, 17 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Tue, 20 Aug 2024 00:03:18 GMT
server
AmazonS3
etag
"37c57b11ce88b609c07decff04a21205"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
accept-ranges
bytes
x-amz-cf-id
ulbWmxn1k4J8213UypMSlLGHEvivc95aCq7MopcyU44TOrNu-y1dSA==
FlexBox-9653b903.css
substackcdn.com/bundle/assets/
103 KB
12 KB
Stylesheet
General
Full URL
https://substackcdn.com/bundle/assets/FlexBox-9653b903.css
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
9653b9030dec79cd45a2f58545a39abf6179ca532e28c9de170dbdb8bebddf01

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 02:44:09 GMT
content-encoding
br
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
46172
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Mon, 17 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Tue, 20 Aug 2024 23:16:29 GMT
server
AmazonS3
etag
W/"7471bf614fc6660f43526b8d6e8c2b63"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
DGUFvQLTzR8pKGf9oSjA5HDDauXrhlQ0QeZIbFmlnuRZyfudDD7cRQ==
IntroPopup-a01e8e94.css
substackcdn.com/bundle/assets/
5 KB
2 KB
Stylesheet
General
Full URL
https://substackcdn.com/bundle/assets/IntroPopup-a01e8e94.css
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
a01e8e94af18be8a9128073c65b6349e364faae24e2c26ccd3ae31b514aea717

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 01:05:52 GMT
content-encoding
gzip
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
52148
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Mon, 17 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Tue, 20 Aug 2024 00:03:18 GMT
server
AmazonS3
etag
W/"9ce42f2e979401cfd9cb3eb5a34201cc"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
ld-CYk0uBQvaUtGyXsK7fvnq0XrFfTQ2pC4EoPsw6SOk42IrJtRGSQ==
free_email_form-a84f1e43.css
substackcdn.com/bundle/assets/
3 KB
1 KB
Stylesheet
General
Full URL
https://substackcdn.com/bundle/assets/free_email_form-a84f1e43.css
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
a84f1e430ae87e9d5c5a8168e1ea73836a55337b5a22caa3beaf2defeffffcc3

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 04:13:07 GMT
content-encoding
gzip
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
42596
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Wed, 12 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Thu, 15 Aug 2024 23:49:04 GMT
server
AmazonS3
etag
W/"30d40d4e3dab2ad2ba4960cd757a4028"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
78z1OwAGkQUU8XVizPChsUiaw1y4D6rJ3_N77_nXc5YonFvybyEiiQ==
https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9cb01c8-fb5c-4c3c-ba94-0f2813fb1f79_1280x720.png
substackcdn.com/image/fetch/w_1360,c_limit,f_webp,q_auto:best,fl_progressive:steep/
262 KB
263 KB
Image
General
Full URL
https://substackcdn.com/image/fetch/w_1360,c_limit,f_webp,q_auto:best,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9cb01c8-fb5c-4c3c-ba94-0f2813fb1f79_1280x720.png
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:206f:6000:4:b4b9:d3c0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
imgproxy / Express
Resource Hash
8b25a89c0cb9d1fe1f368edd71288ec33da9bac81fe32ecd90a90c0d4d9d5723
Security Headers
Name Value
Content-Security-Policy script-src 'none'

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Sat, 30 Dec 2023 21:08:54 GMT
content-security-policy
script-src 'none'
via
1.1 cae542650fb32c773cc494fc6e7e71e6.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
20370287
x-powered-by
Express
x-cache
Hit from cloudfront
content-disposition
inline; filename="e9cb01c8-fb5c-4c3c-ba94-0f2813fb1f79_1280x720.webp"
alt-svc
h3=":443"; ma=86400
content-length
268622
x-request-id
BP7_gkdmZrXosC3G84oxI
server
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content-encoding
br
via
1.1 3dd91613764eafe7ad199013ce202442.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
702
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Wed, 19 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Thu, 22 Aug 2024 14:21:05 GMT
server
AmazonS3
etag
W/"be06f5c665b0dab7951a965c6a6d2c82"
vary
Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
fEuldLf1xCtGebMuxhsQg4AX2kHTr-w_ovt5TDiscRX24XUR5uwqDA==
cookie_constants-84cf25b9.js
substackcdn.com/bundle/assets/
0
0
Script
General
Full URL
https://substackcdn.com/bundle/assets/cookie_constants-84cf25b9.js
Requested by
Host: substackcdn.com
URL: https://substackcdn.com/bundle/assets/responsive_img-cfc0dc6b.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
65.9.66.47 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-65-9-66-47.fra56.r.cloudfront.net
Software
AmazonS3 /
Resource Hash

Request headers

Referer
Origin
https://www.calvinrobinson.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 15:22:01 GMT
content-encoding
br
via
1.1 3dd91613764eafe7ad199013ce202442.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
702
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Wed, 19 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Thu, 22 Aug 2024 14:21:05 GMT
server
AmazonS3
etag
W/"b3bf8465f1616bef83a7b0f3fa6b2df3"
vary
Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
VJ3vsJ1hQmkWjjkUthcksGYkHXFPy751GEdNVxi1P9WSw7Xab3m_BA==
CookieConsentFooter-0d9aca19.css
substackcdn.com/bundle/assets/
0
0
Stylesheet
General
Full URL
https://substackcdn.com/bundle/assets/CookieConsentFooter-0d9aca19.css
Requested by
Host: substackcdn.com
URL: https://substackcdn.com/bundle/assets/responsive_img-cfc0dc6b.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
65.9.66.47 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-65-9-66-47.fra56.r.cloudfront.net
Software
AmazonS3 /
Resource Hash

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 01:03:47 GMT
via
1.1 4874e0c922f34c928345f4c183ea11b4.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-C1
age
52196
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
content-length
599
x-amz-expiration
expiry-date="Mon, 17 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Tue, 20 Aug 2024 00:03:18 GMT
server
AmazonS3
etag
"19e8108beffa3e49bd2ff37347740804"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
accept-ranges
bytes
x-amz-cf-id
8-k6ogsVZ9m3hR_gcn8eOpAHeQV_ObeFqP5HVk8ctzUO0tH9m8ap_Q==
index-2caf47c8.css
substackcdn.com/bundle/assets/
0
0
Stylesheet
General
Full URL
https://substackcdn.com/bundle/assets/index-2caf47c8.css
Requested by
Host: substackcdn.com
URL: https://substackcdn.com/bundle/assets/responsive_img-cfc0dc6b.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
65.9.66.47 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-65-9-66-47.fra56.r.cloudfront.net
Software
AmazonS3 /
Resource Hash

Request headers

Referer
https://www.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 02:26:42 GMT
content-encoding
gzip
via
1.1 4874e0c922f34c928345f4c183ea11b4.cloudfront.net (CloudFront)
age
47221
x-amz-cf-pop
FRA56-C1
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
alt-svc
h3=":443"; ma=86400
x-amz-expiration
expiry-date="Wed, 12 Feb 2025 00:00:00 GMT", rule-id="StaticAssetIntelligentTiering"
last-modified
Thu, 15 Aug 2024 23:49:04 GMT
server
AmazonS3
etag
W/"5f9463f36800cd981718d3a9089be866"
vary
Accept-Encoding, Origin
content-type
text/css
cache-control
public, max-age=31536000, immutable
x-amz-cf-id
JEz6MBeC8mQ0TeCkg2_of1LglUOn-n2fhvqTWpVJewxSE7gsd92cJA==
firehose
www.calvinrobinson.com/api/v1/
0
0
Image
General
Full URL
https://www.calvinrobinson.com/api/v1/firehose?_=1724340822128&d=eyJldmVudCI6IkZ1bGwgRW1haWwgRm9ybSBTaG93biIsInByb3BlcnRpZXMiOnsiYnJvd3NlclNlc3Npb25JZCI6ImJwZjFvc2tycGVlIiwiaWZyYW1lVmlzaXRJZCI6ZmFsc2UsInNvdXJjZSI6ImNvdmVyX3BhZ2UiLCJmdW5jdGlvbmFsX3ZlcnNpb24iOnRydWV9LCJjb250ZXh0Ijp7ImNsaWVudF90eXBlIjoid2ViIiwiZGlzcGxheU1vZGUiOiJicm93c2VyIiwicGFnZSI6eyJyZWZlcnJlciI6IiIsInRpdGxlIjoiRnIgQ2FsdmluIFJvYmluc29uIHwgU3Vic3RhY2siLCJ1cmwiOiJodHRwczovL3d3dy5jYWx2aW5yb2JpbnNvbi5jb20vIn0sImNhbXBhaWduIjp7fSwidGltZVpvbmUiOiJFdXJvcGUvQmVybGluIn19
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.64.151.232 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.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 15:33:42 GMT
x-cluster
substack
cf-cache-status
DYNAMIC
server
cloudflare
strict-transport-security
max-age=31536000
x-powered-by
Express
vary
Accept-Encoding
content-type
image/gif
x-deploy
ada9e02191
cache-control
no-cache
x-service
web
cf-ray
8b73ec3b1a0d62cf-HAM
alt-svc
h3=":443"; ma=86400
x-served-by
Substack
firehose
www.calvinrobinson.com/api/v1/
0
0
Image
General
Full URL
https://www.calvinrobinson.com/api/v1/firehose?_=1724340822132&d=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%3D
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.64.151.232 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.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 15:33:42 GMT
x-cluster
substack
cf-cache-status
DYNAMIC
server
cloudflare
strict-transport-security
max-age=31536000
x-powered-by
Express
vary
Accept-Encoding
content-type
image/gif
x-deploy
ada9e02191
cache-control
no-cache
x-service
web
cf-ray
8b73ec3b1a1062cf-HAM
alt-svc
h3=":443"; ma=86400
x-served-by
Substack
collect
www.google-analytics.com/
0
0

firehose
www.calvinrobinson.com/api/v1/
0
0
Image
General
Full URL
https://www.calvinrobinson.com/api/v1/firehose?_=1724340822882&d=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%3D%3D
Requested by
Host: www.calvinrobinson.com
URL: https://www.calvinrobinson.com/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.64.151.232 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.calvinrobinson.com/
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 15:33:43 GMT
x-cluster
substack
cf-cache-status
DYNAMIC
server
cloudflare
strict-transport-security
max-age=31536000
x-powered-by
Express
vary
Accept-Encoding
content-type
image/gif
x-deploy
ada9e02191
cache-control
no-cache
x-service
web
cf-ray
8b73ec3f18e862cf-HAM
alt-svc
h3=":443"; ma=86400
x-served-by
Substack
bundle.es5.min.js
browser.sentry-cdn.com/7.119.0/
90 KB
29 KB
Script
General
Full URL
https://browser.sentry-cdn.com/7.119.0/bundle.es5.min.js
Requested by
Host: js.sentry-cdn.com
URL: https://js.sentry-cdn.com/6c2ff3e3828e4017b7faf7b63e24cdf8.min.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:400::729 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
Fastly /
Resource Hash
010a8e3feb57c4f91ecb4fae6ecbad16f9173f86a6960dc81d8277bd79bc8006
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains

Request headers

Referer
https://www.calvinrobinson.com/
Origin
https://www.calvinrobinson.com
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Response headers

date
Thu, 22 Aug 2024 15:34:11 GMT
content-encoding
gzip
strict-transport-security
max-age=31536000; includeSubDomains
last-modified
Wed, 14 Aug 2024 10:19:44 GMT
server
Fastly
age
705619
etag
"4e9f469bdbb25b876b59730d6a47d7d1"
vary
Accept-Encoding
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
content-length
28993
expires
Thu, 14 Aug 2025 11:33:51 GMT

Failed requests

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

Domain
www.google-analytics.com
URL
https://www.google-analytics.com/collect?v=1&t=pageview&tid=G-4CZBQVWRJG&dl=https%3A%2F%2Fwww.calvinrobinson.com%2F&dt=Fr%20Calvin%20Robinson%20%7C%20Substack&dr=
Domain
www.google-analytics.com
URL
https://www.google-analytics.com/collect?v=1&t=pageview&tid=G-4CZBQVWRJG&cid=8acb69e2-e005-43d4-bc33-0decfa694bb2&dl=https%3A%2F%2Fwww.calvinrobinson.com%2Fwelcome&dt=Fr%20Calvin%20Robinson%20%7C%20Substack&dr=

Verdicts & Comments Add Verdict or Comment

12 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.

object| 0 object| Sentry object| _preloads object| _analyticsConfig object| DD_RUM object| _sentryDebugIds string| _sentryDebugIdIdentifier object| SENTRY_RELEASE object| I18N object| localGaDataLayer function| gtag object| __cfBeacon

12 Cookies

Domain/Path Name / Value
.www.calvinrobinson.com/ Name: ab_experiment_sampled
Value: %22false%22
.www.calvinrobinson.com/ Name: ab_testing_id
Value: %2261b6e94c-3015-4a2f-9253-6a38f840af49%22
.www.calvinrobinson.com/ Name: __cf_bm
Value: wmt_LdlL3eD0z.piQQwkW5WKN3SyjGQV2hCR5VW8D0k-1724340821-1.0.1.1-ZB63dXaZ0vnai.ivXjb7LbSHS84rrMQVOn7Qec_S2YnvgCPMKBr6a9PUtgRLkdm9n2iUaST.R6TfXdQm9SjAtw
www.calvinrobinson.com/ Name: ajs_anonymous_id
Value: %228acb69e2-e005-43d4-bc33-0decfa694bb2%22
.substack.com/ Name: cookie_storage_key
Value: 04ab60f4-7107-4265-b2fa-43ce6d466a46
substack.com/ Name: AWSALBTGCORS
Value: DZzZqMxL+DZ9R3TMP5Hq/A4ELc9r/xotmA4MDzrp5Q+n5iUDcHKv7GmKSsiDghvCA4U8lcGA1+nd6UFAn624vetl3IH+W8oqOPbzn+efht90etaht8J7mu26blEug8qztJMSfTUeFBivHmdO95LzsXiK5qk8oPcFhx1bsHFOMeZi
.substack.com/ Name: __cf_bm
Value: 4IDqbcyLVdda3leKZw61OnNuKx2y3yQkWperYEy68Qg-1724340823-1.0.1.1-I1ESYLnllYDkPPw3XiDX.x5CjIpXxBjhnxEz1GJiW06fi7hu.KfCiDshkh8rKrnpu7GmgL4wN51U.61mXGdBUg
.www.calvinrobinson.com/ Name: ajs_anonymous_id
Value: %228acb69e2-e005-43d4-bc33-0decfa694bb2%22
www.calvinrobinson.com/ Name: AWSALBTG
Value: ZsJNEeupKCwbPXLNZHLgmwc/pQOY+tBWdTddxbmXDpcyVI8gpdBtP/LCrQ0SWky27v8fKpvV/ZfttyqZnfobYS2e+qRANbIoEgGqp8ExlRH2cHFZEm8BsyuJcFNLmdp53LLkMaBlTAsOMqRxBV+gQmhGo7ak/iYrkxpi2EfExTWO
www.calvinrobinson.com/ Name: AWSALBTGCORS
Value: ZsJNEeupKCwbPXLNZHLgmwc/pQOY+tBWdTddxbmXDpcyVI8gpdBtP/LCrQ0SWky27v8fKpvV/ZfttyqZnfobYS2e+qRANbIoEgGqp8ExlRH2cHFZEm8BsyuJcFNLmdp53LLkMaBlTAsOMqRxBV+gQmhGo7ak/iYrkxpi2EfExTWO
.www.calvinrobinson.com/ Name: visit_id
Value: %7B%22id%22%3A%22c7e46b23-1a9d-4ee1-9f64-361101d882e1%22%2C%22timestamp%22%3A%222024-08-22T15%3A33%3A42.336Z%22%7D
www.calvinrobinson.com/ Name: _dd_s
Value: rum=0&expire=1724341722228

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
X-Frame-Options sameorigin

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.

browser.sentry-cdn.com
calvinrobinson.co.uk
fonts.gstatic.com
js.sentry-cdn.com
static.cloudflareinsights.com
substack.com
substackcdn.com
www.calvinrobinson.com
www.datadoghq-browser-agent.com
www.google-analytics.com
www.google-analytics.com
13.33.219.205
15.197.225.128
172.64.150.56
172.64.151.232
2600:9000:206f:6000:4:b4b9:d3c0:93a1
2606:4700::6810:5049
2a00:1450:4001:812::2003
2a04:4e42:400::729
65.9.66.47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