docs.castle.io
2606:4700::6810:f176 Public Scan Open in urlscan Pro

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Submitted URL:
http://t.castle.io/ 9yr old
Effective URL:
https://docs.castle.io/ 6yr old
Submission: On May 30 via manual (May 30th 2025, 6:31:19 pm UTC) from US — Scanned from US

Summary HTTP 8 Redirects Links 1 Behaviour Indicators

Summary

This website contacted 4 IPs in 2 countries across 3 domains to perform 8 HTTP transactions. The main IP is 2606:4700::6810:f176, located in and belongs to CLOUDFLARENET, US. The main domain is docs.castle.io. 6yr old
TLS certificate: Issued by WE1 on May 4th 2025. Valid for: 3mo.

This is the only time docs.castle.io was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
2 2	35.168.130.211 35.168.130.211	14618 (AMAZON-AES) (AMAZON-AES)
1 1	75.2.60.5 75.2.60.5	16509 (AMAZON-02) (AMAZON-02)
3	2606:4700::68... 2606:4700::6810:f176	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	104.192.142.21 104.192.142.21	14618 (AMAZON-AES) (AMAZON-AES)
1	2606:4700::68... 2606:4700::6812:5e29	13335 (CLOUDFLAR...) (CLOUDFLARENET)
8	4

2 35.168.130.211 (Ashburn, United States) 2 redirects

ASN14618 (AMAZON-AES, US)
PTR: ec2-35-168-130-211.compute-1.amazonaws.com

t.castle.io 9yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools
api.castle.io 7yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

1 75.2.60.5 (United States) 1 redirects

ASN16509 (AMAZON-02, US)
PTR: acd89244c803f7181.awsglobalaccelerator.com

castle.io 11yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

3 2606:4700::6810:f176 (None, )

ASN13335 (CLOUDFLARENET, US)

docs.castle.io 6yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

1 104.192.142.21 (United States)

ASN14618 (AMAZON-AES, US)

nz3r09cr7dk1.statuspage.io 1yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

1 2606:4700::6812:5e29 (None, )

ASN13335 (CLOUDFLARENET, US)

challenges.cloudflare.com 4yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

	Apex Domain Subdomains	Transfer
6	castle.io 3 redirects t.castle.io — Cisco Umbrella Rank: 32967 9yr old api.castle.io — Cisco Umbrella Rank: 272904 7yr old castle.io — Cisco Umbrella Rank: 28271 11yr old docs.castle.io 6yr old	57 KB
1	cloudflare.com challenges.cloudflare.com — Cisco Umbrella Rank: 1575 4yr old	16 KB
1	statuspage.io nz3r09cr7dk1.statuspage.io 1yr old	1 KB
8	3

	Domain	Requested by
3	docs.castle.io	docs.castle.io
1	challenges.cloudflare.com	docs.castle.io
1	nz3r09cr7dk1.statuspage.io	docs.castle.io
1	castle.io	1 redirects
1	api.castle.io	1 redirects
1	t.castle.io	1 redirects
8	6

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

Domain
status.readme.io

Subject Issuer	Validity	Valid
docs.castle.io WE1	`2025-05-04` - `2025-08-02`	3mo	crt.sh
*.statuspage.io DigiCert Global G2 TLS RSA SHA256 2020 CA1	`2024-07-29` - `2025-08-27`	1yr	crt.sh
challenges.cloudflare.com WE1	`2025-04-29` - `2025-07-28`	3mo	crt.sh

This page contains 1 frames:

Primary Page: https://docs.castle.io/
Frame ID: 12078980758F76DDA2D596A801B87316
Requests: 8 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Just a moment...

Page URL History Show full URLs

http://t.castle.io/ HTTP 307
https://t.castle.io/ HTTP 301
https://api.castle.io/ HTTP 302
https://castle.io/docs HTTP 301
https://docs.castle.io/ Page URL

Page Statistics

8
Requests

63 %
HTTPS

40 %
IPv6

3
Domains

6
Subdomains

4
IPs

2
Countries

73 kB
Transfer

183 kB
Size

0
Cookies

1 Outgoing links

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

URL: http://status.readme.io/
Title: All Systems Operational

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://t.castle.io/ HTTP 307
https://t.castle.io/ HTTP 301
https://api.castle.io/ HTTP 302
https://castle.io/docs HTTP 301
https://docs.castle.io/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

8 HTTP transactions
0 data transactions

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

GET
H3

403

Primary Request / Show response
docs.castle.io/
Redirect Chain

http://t.castle.io/
https://t.castle.io/
https://api.castle.io/
https://castle.io/docs
https://docs.castle.io/

22 KB
12 KB

164ms
88ms

Document
text/html

2606:4700::6810:f176
CLOUDFLARENET

General

Check archive.org

Download Go to

Full URL

https://docs.castle.io/

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700::6810:f176 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

313581a8345b02e96ff226f31c6541e3c319554d0964f980a8b5abaf59b3000f

Security Headers

Name	Value
X-Content-Type-Options	nosniff
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/137.0.0.0 Safari/537.36

Response headers

accept-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
alt-svc: h3=":443"; ma=86400
cache-control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-mitigated: challenge
cf-ray: 94804ecb6f1841d9-EWR
content-encoding: br
content-type: text/html; charset=UTF-8
critical-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cross-origin-embedder-policy: require-corp
cross-origin-opener-policy: same-origin
cross-origin-resource-policy: same-origin
date: Fri, 30 May 2025 18:31:19 GMT
expires: Thu, 01 Jan 1970 00:00:01 GMT
origin-agent-cluster: ?1
permissions-policy: accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
priority: u=0,i
referrer-policy: same-origin
server: cloudflare
server-timing: chlray;desc="94804ecb6f1841d9" cfExtPri
vary: Accept-Encoding
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN

Redirect headers

age: 0
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; fwd=miss
content-length: 37
content-type: text/plain; charset=utf-8
date: Fri, 30 May 2025 18:31:19 GMT
location: https://docs.castle.io/
server: Netlify
strict-transport-security: max-age=31536000
x-nf-request-id: 01JWH7CYNFEN0TPFCNVC7985ZR

GET
H3 200 v1 Show response
docs.castle.io/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/ 93 KB
35 KB 29ms
28ms Script
application/javascript 2606:4700::6810:f176
CLOUDFLARENET

General

Check archive.org

Download Go to

Full URL: https://docs.castle.io/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=94804ecb6f1841d9
Requested by: Host: docs.castle.io
URL: https://docs.castle.io/
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 2606:4700::6810:f176 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 6e7a2fb991f3afbd6c1e33e68f0986d495bf35fef4a7013c03a2575d755122a5

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Referer: https://docs.castle.io/?__cf_chl_rt_tk=Ku6wcUDjEVW1F1rvQnLKtmcfqC78sjo0VCgzAtGpanc-1748629879-1.0.1.1-Z834tHuPSFUjQ7RwM3a3j7wvtT35jBntlLo9BV_aaPw

Response headers

cache-control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
content-encoding: br
cf-ray: 94804ecc483e41d9-EWR
alt-svc: h3=":443"; ma=86400
server-timing: cfExtPri
date: Fri, 30 May 2025 18:31:19 GMT
content-type: application/javascript; charset=UTF-8
vary: Accept-Encoding
server: cloudflare
priority: u=3,i=?0

GET
H2 200 status.json Show response
nz3r09cr7dk1.statuspage.io/api/v2/ 232 B
1 KB 172ms
124ms XHR
application/json 104.192.142.21
AMAZON-AES

General

Check archive.org

Download Go to

Full URL

https://nz3r09cr7dk1.statuspage.io/api/v2/status.json

Requested by

Host: docs.castle.io
URL: https://docs.castle.io/?__cf_chl_rt_tk=Ku6wcUDjEVW1F1rvQnLKtmcfqC78sjo0VCgzAtGpanc-1748629879-1.0.1.1-Z834tHuPSFUjQ7RwM3a3j7wvtT35jBntlLo9BV_aaPw

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

104.192.142.21 , United States, ASN14618 (AMAZON-AES, US),

Reverse DNS

Software

AtlassianEdge /

Resource Hash

229e8747548797aebc3784a11eac4db7d44ffb4c493185677088e9177909895d

Security Headers

Name	Value
Strict-Transport-Security	max-age=259200
X-Content-Type-Options	nosniff
X-Xss-Protection	1; mode=block

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Referer

Response headers

content-encoding: br
etag: W/"229e8747548797aebc3784a11eac4db7"
x-permitted-cross-domain-policies: none
report-to: {"endpoints": [{"url": "https://dz8aopenkvv6s.cloudfront.net"}], "group": "endpoint-1", "include_subdomains": true, "max_age": 600}
x-content-type-options: nosniff
x-statuspage-version: abfd7afad4961e5e200b5cbfc004776b46f13647
server-timing: atl-edge;dur=111,atl-edge-internal;dur=3,atl-edge-upstream;dur=109,atl-edge-pop;desc="aws-us-east-1"
x-cache: MISS
date: Fri, 30 May 2025 18:31:19 GMT
content-type: application/json; charset=utf-8
vary: Accept,Accept-Encoding,X-Forwarded-Host,X-Forwarded-Scheme,X-Forwarded-Proto,Fastly-SSL
x-runtime: 0.042523
x-edge-cache-ttl: 3
atl-request-id: 4aa72e77-8992-4292-9dbb-d1449366b69a
strict-transport-security: max-age=259200
x-statuspage-skip-logging: true
cache-control: max-age=3, public
nel: {"failure_fraction": 0.001, "include_subdomains": true, "max_age": 600, "report_to": "endpoint-1"}
referrer-policy: strict-origin-when-cross-origin
x-download-options: noopen
accept-ranges: bytes
access-control-allow-origin: *
x-pollinator-metadata-service: status-page-web-pages
x-xss-protection: 1; mode=block
atl-traceid: 4aa72e77899242929dbbd1449366b69a
server: AtlassianEdge

GET 97202ab4-9a7c-49d5-afd5-e57950e66d51
https://docs.castle.io/ 0
0

GET
H3 200 api.js Show response
challenges.cloudflare.com/turnstile/v0/g/6fab0cec561d/ 47 KB
16 KB 25ms
13ms Script
application/javascript 2606:4700::6812:5e29
CLOUDFLARENET

General

Check archive.org

Download Go to

Full URL: https://challenges.cloudflare.com/turnstile/v0/g/6fab0cec561d/api.js?onload=lwyEv2&render=explicit
Requested by: Host: docs.castle.io
URL: https://docs.castle.io/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=94804ecb6f1841d9
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 2606:4700::6812:5e29 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: a7fdcf655a6349724c367f366c852b2e0309e9ad7a25b376df82a48e1dd98482

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Origin: https://docs.castle.io
Referer

Response headers

server: cloudflare
cache-control: max-age=31536000, stale-if-error=10800, stale-while-revalidate=31536000, public
content-encoding: br
cross-origin-resource-policy: cross-origin
cf-ray: 94804ecca8b7c354-EWR
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
server-timing: cfExtPri
date: Fri, 30 May 2025 18:31:19 GMT
content-type: application/javascript; charset=UTF-8
last-modified: Mon, 12 May 2025 13:39:20 GMT
vary: Accept-Encoding
priority: u=3,i=?0

GET
H3 403 favicon.ico
docs.castle.io/ 20 KB
9 KB 21ms
21ms Other
text/html 2606:4700::6810:f176
CLOUDFLARENET

General

Check archive.org

Download Go to

Full URL

https://docs.castle.io/favicon.ico

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700::6810:f176 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

fe28da7bef2cb2d874298c5dcf1498570a61a694594de8bd4b56d2531b7305da

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Referer: https://docs.castle.io/

Response headers

content-encoding: br
critical-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
x-content-type-options: nosniff
expires: Thu, 01 Jan 1970 00:00:01 GMT
server-timing: chlray;desc="94804ecce90641d9", cfExtPri
alt-svc: h3=":443"; ma=86400
date: Fri, 30 May 2025 18:31:19 GMT
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
priority: u=1,i
x-frame-options: SAMEORIGIN
cf-mitigated: challenge
cache-control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cross-origin-opener-policy: same-origin
accept-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cross-origin-resource-policy: same-origin
referrer-policy: same-origin
cf-ray: 94804ecce90641d9-EWR
cross-origin-embedder-policy: require-corp
permissions-policy: accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
origin-agent-cluster: ?1
server: cloudflare

POST T2rtsujVmsDI3EkqYAFwwC73oYA4Xfvtb63cZ_dUdGI-1748629879-1.2.1.1-o9.A2VkWcQqU9pxa5eOov9YqIh6gvlL6OGIVg4lWQSSqOTLPN2WGPHtiwwfWs9cR
docs.castle.io/cdn-cgi/challenge-platform/h/g/flow/ov1/1999023957:1748626204:_KDueHR88foe-_4nSo0ITZF0pDVzIjh2owaVryzhBCg/94804ecb6f1841d9/ 0
0

Failed requests

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

Domain: docs.castle.io
URL: blob:https://docs.castle.io/97202ab4-9a7c-49d5-afd5-e57950e66d51

Domain: docs.castle.io
URL: https://docs.castle.io/cdn-cgi/challenge-platform/h/g/flow/ov1/1999023957:1748626204:_KDueHR88foe-_4nSo0ITZF0pDVzIjh2owaVryzhBCg/94804ecb6f1841d9/T2rtsujVmsDI3EkqYAFwwC73oYA4Xfvtb63cZ_dUdGI-1748629879-1.2.1.1-o9.A2VkWcQqU9pxa5eOov9YqIh6gvlL6OGIVg4lWQSSqOTLPN2WGPHtiwwfWs9cR

Domain: docs.castle.io
URL: https://docs.castle.io/cdn-cgi/challenge-platform/h/g/flow/ov1/1999023957:1748626204:_KDueHR88foe-_4nSo0ITZF0pDVzIjh2owaVryzhBCg/94804ecb6f1841d9/T2rtsujVmsDI3EkqYAFwwC73oYA4Xfvtb63cZ_dUdGI-1748629879-1.2.1.1-o9.A2VkWcQqU9pxa5eOov9YqIh6gvlL6OGIVg4lWQSSqOTLPN2WGPHtiwwfWs9cR

Verdicts & Comments Add Verdict or Comment

20 JavaScript Window variables

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

0 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.

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
network	error	URL: https://docs.castle.io/ Message: Failed to load resource: the server responded with a status of 403 ()
network	error	URL: https://docs.castle.io/favicon.ico Message: Failed to load resource: the server responded with a status of 403 ()

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
X-Content-Type-Options	nosniff
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.

api.castle.io
castle.io
challenges.cloudflare.com
docs.castle.io
nz3r09cr7dk1.statuspage.io
t.castle.io
docs.castle.io
104.192.142.21
2606:4700::6810:f176
2606:4700::6812:5e29
35.168.130.211
75.2.60.5
229e8747548797aebc3784a11eac4db7d44ffb4c493185677088e9177909895d
313581a8345b02e96ff226f31c6541e3c319554d0964f980a8b5abaf59b3000f
6e7a2fb991f3afbd6c1e33e68f0986d495bf35fef4a7013c03a2575d755122a5
a7fdcf655a6349724c367f366c852b2e0309e9ad7a25b376df82a48e1dd98482
fe28da7bef2cb2d874298c5dcf1498570a61a694594de8bd4b56d2531b7305da

docs.castle.io 2606:4700::6810:f176 Public Scan Open in urlscan Pro

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Page Statistics

8 Requests

63 %HTTPS

40 %IPv6

3 Domains

6 Subdomains

4 IPs

2 Countries

73 kBTransfer

183 kBSize

0 Cookies

1 Outgoing links

Page URL History

Redirected requests

8 HTTP transactions Everything HTML Script Fetch XHR CSS Image Font Expand all 0 data transactions

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Failed requests

Verdicts & Comments Add Verdict or Comment

20 JavaScript Window variables

0 Cookies

2 Console Messages

Security Headers

Indicators

docs.castle.io
2606:4700::6810:f176 Public Scan Open in urlscan Pro

Screenshot
Live screenshot

Full Image

8
Requests

63 %
HTTPS

40 %
IPv6

3
Domains

6
Subdomains

4
IPs

2
Countries

73 kB
Transfer

183 kB
Size

0
Cookies

8 HTTP transactions
0 data transactions