catb.org - urlscan.io

Summary

This website contacted 2 IPs in 2 countries across 2 domains to perform 5 HTTP transactions. The main IP is 152.19.134.41, located in Durham, United States and belongs to UNC-CH, US. The main domain is catb.org.
TLS certificate: Issued by R3 on March 27th 2024. Valid for: 3 months.

This is the only time catb.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
4	152.19.134.41 152.19.134.41	36850 (UNC-CH) (UNC-CH)
1	104.18.22.19 104.18.22.19	13335 (CLOUDFLAR...) (CLOUDFLARENET)
5	2

4 152.19.134.41 (Durham, United States)

ASN36850 (UNC-CH, US)
PTR: vermontlibraries.org

catb.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 104.18.22.19 (None, )

ASN13335 (CLOUDFLARENET, US)

www.w3.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
4	catb.org catb.org	10 KB
1	w3.org www.w3.org — Cisco Umbrella Rank: 26049	2 KB
5	2

	Domain	Requested by
4	catb.org	catb.org
1	www.w3.org	catb.org
5	2

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

Domain
validator.w3.org

Subject Issuer	Validity	Valid
www.animadance.org R3	`2024-03-27` - `2024-06-25`	3 months	crt.sh
w3.org Cloudflare Inc ECC CA-3	`2024-01-26` - `2024-12-31`	a year	crt.sh

This page contains 1 frames:

Primary Page: https://catb.org/
Frame ID: B5140FD8D638DCEC1763C88A134EC861
Requests: 5 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

catb.org site page

Page URL History Show full URLs

http://catb.org/ HTTP 307
https://catb.org/ Page URL

Page Statistics

5
Requests

20 %
HTTPS

0 %
IPv6

2
Domains

2
Subdomains

2
IPs

2
Countries

13 kB
Transfer

14 kB
Size

1
Cookies

1 Outgoing links

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

URL: http://validator.w3.org/check/referer

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://catb.org/ HTTP 307
https://catb.org/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

5 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
catb.org/
Redirect Chain

http://catb.org/
https://catb.org/

1 KB
979 B

809ms
116ms

Document
text/html

152.19.134.41
UNC-CH

General

Check archive.org

Show headers Download Go to

Full URL: https://catb.org/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 152.19.134.41 Durham, United States, ASN36850 (UNC-CH, US),
Reverse DNS: vermontlibraries.org
Software: Apache /
Resource Hash: 8a9d1b4ede20300fe4662d47eae9d2fc13f365353edbe9f33147b39ff9e43ebe

Request headers

Accept-Language: de-DE,de;q=0.9;q=0.9
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Response headers

accept-ranges: bytes
content-encoding: gzip
content-length: 843
content-type: text/html
date: Mon, 06 May 2024 16:06:40 GMT
last-modified: Wed, 13 Jul 2022 14:38:49 GMT
server: Apache
vary: Accept-Encoding

Redirect headers

Location: https://catb.org/
Non-Authoritative-Reason: HttpsUpgrades

GET
H2 200 sitestyle.css
catb.org/esr/ 3 KB
2 KB 117ms
116ms Stylesheet
text/css 152.19.134.41
UNC-CH

General

Check archive.org

Show headers Download Go to

Full URL: https://catb.org/esr/sitestyle.css
Requested by: Host: catb.org
URL: https://catb.org/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 152.19.134.41 Durham, United States, ASN36850 (UNC-CH, US),
Reverse DNS: vermontlibraries.org
Software: Apache /
Resource Hash: c749301cfcb8fcdef4d5e5612b05beda2bb4ad412c82d9b75fad92afc11516c4

Request headers

sec-ch-ua: "Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer: https://catb.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 06 May 2024 16:06:40 GMT
content-encoding: gzip
last-modified: Fri, 16 Feb 2024 20:54:23 GMT
server: Apache
vary: Accept-Encoding
content-type: text/css
accept-ranges: bytes
content-length: 1431

GET
H2 200 datestamp.js Show response
catb.org/~esr/ 714 B
545 B 117ms
117ms Script
application/javascript 152.19.134.41
UNC-CH

General

Check archive.org

Show headers Download Go to

Full URL: https://catb.org/~esr/datestamp.js
Requested by: Host: catb.org
URL: https://catb.org/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 152.19.134.41 Durham, United States, ASN36850 (UNC-CH, US),
Reverse DNS: vermontlibraries.org
Software: Apache /
Resource Hash: eaecb9b354304d7fb82b89892e852bec48aa8ac916d4de3647d5a997ebdc5a6e

Request headers

sec-ch-ua: "Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer: https://catb.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 06 May 2024 16:06:40 GMT
content-encoding: gzip
last-modified: Tue, 02 Apr 2019 16:34:35 GMT
server: Apache
vary: Accept-Encoding
content-type: application/javascript
accept-ranges: bytes
content-length: 397

GET
H3 200 valid-xhtml10
www.w3.org/Icons/ 2 KB
2 KB 180ms
151ms Image
image/png 104.18.22.19
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.w3.org/Icons/valid-xhtml10

Requested by

Host: catb.org
URL: https://catb.org/

Protocol

H3

Security

QUIC, , AES_128_GCM

Server

104.18.22.19 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

8a9e64adf9351dbc0f333daae135c88d5162ed8eadf5e65801c19914ab657bab

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
Strict-Transport-Security	max-age=15552000; includeSubdomains; preload

Request headers

sec-ch-ua: "Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer: https://catb.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 06 May 2024 16:06:40 GMT
strict-transport-security: max-age=15552000; includeSubdomains; preload
content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
cf-cache-status: BYPASS
x-backend: www-mirrors
alt-svc: h3=":443"; ma=86400
content-length: 1882
x-request-id: 87fa3805fd48364d
last-modified: Fri, 14 Jul 2006 01:43:32 GMT
server: cloudflare
etag: "75a-41880ced83900;609a6179368f1
vary: negotiate,accept,Origin, Accept-Encoding
content-type: image/png; qs=0.7
access-control-allow-origin: *
cache-control: max-age=2592000
tcn: choice
accept-ranges: bytes
content-location: valid-xhtml10.png
cf-ray: 87fa3805fd48364d-FRA
expires: Wed, 05 Jun 2024 16:06:40 GMT

GET
H2 200 favicon.ico
catb.org/ 7 KB
7 KB 117ms
117ms Other
image/vnd.microsoft.icon 152.19.134.41
UNC-CH

General

Check archive.org

Show headers Download Go to

Full URL: https://catb.org/favicon.ico
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 152.19.134.41 Durham, United States, ASN36850 (UNC-CH, US),
Reverse DNS: vermontlibraries.org
Software: Apache /
Resource Hash: 9e0c0429e871b0ba908d93e24d774d45fc3bb27a7b1a8667c01060b51b09243c

Request headers

sec-ch-ua: "Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer: https://catb.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 06 May 2024 16:06:40 GMT
last-modified: Tue, 21 Jan 2003 20:06:09 GMT
server: Apache
accept-ranges: bytes
content-length: 7406
content-type: image/vnd.microsoft.icon

Verdicts & Comments Add Verdict or Comment

2 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.

function| date_ddmmmyyyy function| date_lastmodified

1 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
			.w3.org/	1970-01-20 20:23:33	Name: __cf_bm Value: 5mtz2wMAP8XVz01c2rW3Hg8N5nrkkjwL3yvSlr2y97k-1715011600-1.0.1.1-ujuSRQPGBoPRaTkhNf4.WOFjNhgUnulWTDjkS5yT3tcbETsbe5spYBYs.nGUi6TlUv1RgsdFYWma10YPYewRww

3 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
security	warning	URL: https://catb.org/ Message: Mixed Content: The page at 'https://catb.org/' was loaded over HTTPS, but requested an insecure element 'http://www.w3.org/Icons/valid-xhtml10'. This request was automatically upgraded to HTTPS, For more information see https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html
security	warning	URL: https://catb.org/(Line 52) Message: Mixed Content: The page at 'https://catb.org/' was loaded over HTTPS, but requested an insecure element 'http://www.w3.org/Icons/valid-xhtml10'. This request was automatically upgraded to HTTPS, For more information see https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html
other	warning	URL: https://catb.org/ Message: Third-party cookie will be blocked. Learn more in the Issues tab.

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.

catb.org
www.w3.org
104.18.22.19
152.19.134.41
8a9d1b4ede20300fe4662d47eae9d2fc13f365353edbe9f33147b39ff9e43ebe
8a9e64adf9351dbc0f333daae135c88d5162ed8eadf5e65801c19914ab657bab
9e0c0429e871b0ba908d93e24d774d45fc3bb27a7b1a8667c01060b51b09243c
c749301cfcb8fcdef4d5e5612b05beda2bb4ad412c82d9b75fad92afc11516c4
eaecb9b354304d7fb82b89892e852bec48aa8ac916d4de3647d5a997ebdc5a6e

catb.org Open in urlscan Pro 152.19.134.41 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Page Statistics

5 Requests

20 %HTTPS

0 %IPv6

2 Domains

2 Subdomains

2 IPs

2 Countries

13 kBTransfer

14 kBSize

1 Cookies

1 Outgoing links

Page URL History

Redirected requests

5 HTTP transactions Everything HTML Script AJAX CSS Image 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

Verdicts & Comments Add Verdict or Comment

2 JavaScript Global Variables

1 Cookies

3 Console Messages

Indicators

catb.org Open in urlscan Pro
152.19.134.41 Public Scan

Screenshot
Live screenshot

Full Image

5
Requests

20 %
HTTPS

0 %
IPv6

2
Domains

2
Subdomains

2
IPs

2
Countries

13 kB
Transfer

14 kB
Size

1
Cookies

5 HTTP transactions
0 data transactions