Domain report
libwebsockets.org
libwebsockets.org ranks in the top 0.32% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.32%
- Hosts observed
- 2
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://libwebsockets.org/ answered with HTTP 200.
DNS records
- A
- 81.141.182.166
- AAAA
- 2a00:23c9:1492:5f00:65dc:7d0e:6b90:9b83
- MX
- No records found.
- NS
- ns8.warmcat.com.
- ns9.warmcat.com.
Live preview
This site sends "X-Frame-Options: deny", which blocks embedding it here.
Since libwebsockets.org can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.
Domain registration (WHOIS / RDAP)
RDAP lookup failed (HTTP 429).
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html
- Cache-Control
- private, max-age=172800
- Content-Encoding
- Not sent
Security
- 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 wss://auth.warmcat.com:443; frame-ancestors 'none'; base-uri 'none'; form-action 'self';
- Strict-Transport-Security
- max-age=63072000; includeSubDomains; preload
- X-Frame-Options
- deny
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- no-referrer
- 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=()
Redirect chain
- 1.
http://libwebsockets.org/HTTP 301→ https://libwebsockets.org/
- 2.
https://libwebsockets.org/HTTP 200
Meta tags
- Title
- libwebsockets.org lightweight and flexible C networking library
- Description
- Not set
- Canonical
- Not set
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Not set
- Open Graph description
- Not set
- Open Graph image
- Not set
- Open Graph type
- Not set
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 2
- Disallow rules (other agents)
- 0
No Sitemap declared in robots.txt.
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.