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libwebsockets.org Open in urlscan Pro
31.53.7.249  Public Scan

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Submitted URL: http://libwebsockets.org/
Effective URL: https://libwebsockets.org/
Submission: On October 29 via api from US — Scanned from GB
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 1 IPs in 1 countries across 1 domains to perform 5 HTTP transactions. The main IP is 31.53.7.249, located in Cambridge, United Kingdom and belongs to BT-UK-AS BTnet UK Regional network, GB. The main domain is libwebsockets.org.
TLS certificate: Issued by R3 on August 30th 2023. Valid for: 3 months.
This is the only time libwebsockets.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
5 31.53.7.249 2856 (BT-UK-AS ...)
5 1
Apex Domain
Subdomains		 Transfer
5 libwebsockets.org
libwebsockets.org
118 KB
5 1
Domain Requested by
5 libwebsockets.org libwebsockets.org
5 1

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

Domain
warmcat.com
travis-ci.org
ci.appveyor.com
www.w3schools.com
Subject Issuer Validity Valid
libwebsockets.org
R3		 2023-08-30 -
2023-11-28		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://libwebsockets.org/
Frame ID: 1B0A9922F815CEF0F4970B78D4195A1E
Requests: 5 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

libwebsockets.org lightweight and flexible C networking library

Page URL History Show full URLs

  1. http://libwebsockets.org/ HTTP 307
    https://libwebsockets.org/ Page URL

Page Statistics

5
Requests

100 %
HTTPS

0 %
IPv6

1
Domains

1
Subdomains

1
IPs

1
Countries

118 kB
Transfer

141 kB
Size

0
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. http://libwebsockets.org/ HTTP 307
    https://libwebsockets.org/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

5 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
libwebsockets.org/
Redirect Chain
  • http://libwebsockets.org/
  • https://libwebsockets.org/
7 KB
4 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://libwebsockets.org/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
31.53.7.249 Cambridge, United Kingdom, ASN2856 (BT-UK-AS BTnet UK Regional network, GB),
Reverse DNS
host31-53-7-249.range31-53.btcentralplus.com
Software
lwsws /
Resource Hash
297e97d0db6342dda2a1336af389f02954b1823ac616a67628d2561691957d94
Security Headers
Name Value
Content-Security-Policy default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
Strict-Transport-Security max-age=63072000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options deny
X-Xss-Protection 1; mode=block

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36
accept-language
en-GB,en;q=0.9

Response headers

cache-control
private, max-age=172800
content-encoding
br
content-security-policy
default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
content-type
text/html
etag
00001CBD615D3554
permissions-policy
geolocation=(),microphone=(),camera=(),display-capture=(),document-domain=(),execution-while-not-rendered=(),execution-while-out-of-viewport=(),identity-credentials-get=(),local-fonts=(),payment=(),serial=(),usb=(),speaker-selection=(),storage-access=()
referrer-policy
no-referrer
server
lwsws
strict-transport-security
max-age=63072000; includeSubDomains; preload
x-content-type-options
nosniff
x-frame-options
deny
x-xss-protection
1; mode=block

Redirect headers

Cross-Origin-Resource-Policy
Cross-Origin
Location
https://libwebsockets.org/
Non-Authoritative-Reason
HSTS
w3.css
libwebsockets.org/ 		23 KB
8 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://libwebsockets.org/w3.css
Requested by
Host: libwebsockets.org
URL: https://libwebsockets.org/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
31.53.7.249 Cambridge, United Kingdom, ASN2856 (BT-UK-AS BTnet UK Regional network, GB),
Reverse DNS
host31-53-7-249.range31-53.btcentralplus.com
Software
lwsws /
Resource Hash
6fb6f7f3c4a5b2eb81161f3d3fc3ede61d6280771fd887cc47d3305c23414933
Security Headers
Name Value
Content-Security-Policy default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
Strict-Transport-Security max-age=63072000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options deny
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-GB,en;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

strict-transport-security
max-age=63072000; includeSubDomains; preload
content-security-policy
default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
referrer-policy
no-referrer
x-content-type-options
nosniff
content-encoding
br
server
lwsws
etag
00005AFD5E61D83F
x-frame-options
deny
content-type
text/css
cache-control
private, max-age=172800
permissions-policy
geolocation=(),microphone=(),camera=(),display-capture=(),document-domain=(),execution-while-not-rendered=(),execution-while-out-of-viewport=(),identity-credentials-get=(),local-fonts=(),payment=(),serial=(),usb=(),speaker-selection=(),storage-access=()
x-xss-protection
1; mode=block
lws.css
libwebsockets.org/ 		2 KB
2 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://libwebsockets.org/lws.css
Requested by
Host: libwebsockets.org
URL: https://libwebsockets.org/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
31.53.7.249 Cambridge, United Kingdom, ASN2856 (BT-UK-AS BTnet UK Regional network, GB),
Reverse DNS
host31-53-7-249.range31-53.btcentralplus.com
Software
lwsws /
Resource Hash
32c9533d601a7e8cf2284b9a0b4d5f47983f79372db8f586fd17975c91084dfc
Security Headers
Name Value
Content-Security-Policy default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
Strict-Transport-Security max-age=63072000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options deny
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-GB,en;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

strict-transport-security
max-age=63072000; includeSubDomains; preload
content-security-policy
default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
referrer-policy
no-referrer
x-content-type-options
nosniff
content-encoding
br
server
lwsws
etag
0000079F5E61D773
x-frame-options
deny
content-type
text/css
cache-control
private, max-age=172800
permissions-policy
geolocation=(),microphone=(),camera=(),display-capture=(),document-domain=(),execution-while-not-rendered=(),execution-while-out-of-viewport=(),identity-credentials-get=(),local-fonts=(),payment=(),serial=(),usb=(),speaker-selection=(),storage-access=()
x-xss-protection
1; mode=block
libwebsockets.org-logo.svg
libwebsockets.org/ 		9 KB
4 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://libwebsockets.org/libwebsockets.org-logo.svg
Requested by
Host: libwebsockets.org
URL: https://libwebsockets.org/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
31.53.7.249 Cambridge, United Kingdom, ASN2856 (BT-UK-AS BTnet UK Regional network, GB),
Reverse DNS
host31-53-7-249.range31-53.btcentralplus.com
Software
lwsws /
Resource Hash
e74a6a4f5ff3ed6a761bcfb6a0639fae641d6cac1bbe967cf8dceac4bb48fcbe
Security Headers
Name Value
Content-Security-Policy default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
Strict-Transport-Security max-age=63072000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options deny
X-Xss-Protection 1; mode=block

Request headers

accept-language
en-GB,en;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

strict-transport-security
max-age=63072000; includeSubDomains; preload
content-security-policy
default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
referrer-policy
no-referrer
x-content-type-options
nosniff
content-encoding
br
server
lwsws
etag
000025865E61D1CD
x-frame-options
deny
content-type
image/svg+xml
cache-control
private, max-age=172800
permissions-policy
geolocation=(),microphone=(),camera=(),display-capture=(),document-domain=(),execution-while-not-rendered=(),execution-while-out-of-viewport=(),identity-credentials-get=(),local-fonts=(),payment=(),serial=(),usb=(),speaker-selection=(),storage-access=()
x-xss-protection
1; mode=block
OpenSans-Light.ttf
libwebsockets.org/ 		99 KB
100 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://libwebsockets.org/OpenSans-Light.ttf
Requested by
Host: libwebsockets.org
URL: https://libwebsockets.org/lws.css
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
31.53.7.249 Cambridge, United Kingdom, ASN2856 (BT-UK-AS BTnet UK Regional network, GB),
Reverse DNS
host31-53-7-249.range31-53.btcentralplus.com
Software
lwsws /
Resource Hash
80d5513e21af52eeac6e5893ad47c3f7d74b2464987ad669d28690d45eeafa23
Security Headers
Name Value
Content-Security-Policy default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
Strict-Transport-Security max-age=63072000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options deny
X-Xss-Protection 1; mode=block

Request headers

Referer
Origin
https://libwebsockets.org
accept-language
en-GB,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

strict-transport-security
max-age=63072000; includeSubDomains; preload
content-security-policy
default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
referrer-policy
no-referrer
x-content-type-options
nosniff
server
lwsws
etag
00018D405E61D25E
x-frame-options
deny
content-type
application/x-font-truetype
cache-control
private, max-age=172800
permissions-policy
geolocation=(),microphone=(),camera=(),display-capture=(),document-domain=(),execution-while-not-rendered=(),execution-while-out-of-viewport=(),identity-credentials-get=(),local-fonts=(),payment=(),serial=(),usb=(),speaker-selection=(),storage-access=()
x-xss-protection
1; mode=block

Verdicts & Comments Add Verdict or Comment

1 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| documentPictureInPicture

0 Cookies

6 Console Messages

Source Level URL
Text
security warning
Message:
Error with Permissions-Policy header: Unrecognized feature: 'document-domain'.
security warning
Message:
Error with Permissions-Policy header: Unrecognized feature: 'execution-while-not-rendered'.
security warning
Message:
Error with Permissions-Policy header: Unrecognized feature: 'execution-while-out-of-viewport'.
security warning
Message:
Error with Permissions-Policy header: Unrecognized feature: 'speaker-selection'.
security warning
Message:
Error with Permissions-Policy header: Unrecognized feature: 'storage-access'.
security error URL: https://libwebsockets.org/
Message:
The Content-Security-Policy directive 'default-src' contains the keyword 'none' alongside with other source expressions. The keyword 'none' must be the only source expression in the directive value, otherwise it is ignored.

Security Headers

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

Header Value
Content-Security-Policy default-src 'none' https://www.google.com; img-src 'self' data: https://scan.coverity.com https://bestpractices.coreinfrastructure.org https://api.codacy.com https://img.shields.io https://www.google.com; script-src 'self' https://www.google.com https://www.gstatic.com; font-src 'self'; style-src 'self' https://www.google.com; connect-src 'self' wss://libwebsockets.org:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
Strict-Transport-Security max-age=63072000; includeSubDomains; preload
X-Content-Type-Options nosniff
X-Frame-Options deny
X-Xss-Protection 1; mode=block