Domain report
cdlibre.org
cdlibre.org ranks in the top 0.11% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.11%
- 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://cdlibre.org/ answered with HTTP 200.
DNS records
- A
- 147.156.223.81
- AAAA
- No records found.
- MX
- 50 alt1.aspmx.l.google.com.
- 100 aspmx4.googlemail.com.
- 100 aspmx3.googlemail.com.
- 100 aspmx2.googlemail.com.
- 10 aspmx.l.google.com.
- 50 alt2.aspmx.l.google.com.
- 100 aspmx5.googlemail.com.
- NS
- dns3.servidoresdns.net.
- dns4.servidoresdns.net.
Live preview
This site sends "X-Frame-Options: sameorigin", which blocks embedding it here.
Since cdlibre.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)
- Registrar
- Arsys Internet, S.L. dba NICLINE.COM
- Registered
- 2003-01-10
- Expires
- 2027-01-10
- Last changed
- 2026-08-12
Nameservers: dns3.servidoresdns.net, dns4.servidoresdns.net
Status: client transfer prohibited
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=UTF-8
- Cache-Control
- Not sent
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- Not sent
- Strict-Transport-Security
- max-age=15768000; includeSubDomains; preload
- X-Frame-Options
- sameorigin
- X-Content-Type-Options
- Not sent
- Referrer-Policy
- Not sent
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://cdlibre.org/HTTP 301→ https://cdlibre.org/
- 2.
https://cdlibre.org/HTTP 301→ https://www.cdlibre.org/
- 3.
https://www.cdlibre.org/HTTP 200
Meta tags
- Title
- cdlibre.org - Recopilaciones de Software Libre
- Description
- Recopilaciones de software libre o gratuito para Windows y Linux
- 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: *)
- 1
- 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
- Google Analyticsanalytics
Found "www.google-analytics.com" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.