Domain report
github.co
github.co ranks in the top 0.29% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 3 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.29%
- Hosts observed
- 3
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://github.co/ answered with HTTP 429.
DNS records
- A
- 40.112.243.53
- 20.119.0.28
- AAAA
- No records found.
- MX
- No records found.
- NS
- ns1-37.azure-dns.com.
- ns2-37.azure-dns.net.
- ns3-37.azure-dns.org.
- ns4-37.azure-dns.info.
Live preview
This site sends "X-Frame-Options: deny", which blocks embedding it here.
Since github.co 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)
No RDAP (WHOIS) data is available for github.co.
SSL certificate
Certificate Transparency lookup failed: The operation was aborted due to timeout
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=utf-8
- Cache-Control
- no-cache
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- default-src 'none'; style-src 'unsafe-inline'
- Strict-Transport-Security
- max-age=31536000; includeSubDomains; preload
- X-Frame-Options
- deny
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- Not sent
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://github.co/HTTP 301→ https://github.co/
- 2.
https://github.co/HTTP 302→ https://github.com/?ref=github.co
- 3.
https://github.com/?ref=github.coHTTP 429
Meta tags
- Title
- Rate limit · GitHub
- 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: *)
- 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
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.