Domain report
opencontext.org
opencontext.org ranks in the top 0.31% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 4 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.31%
- Hosts observed
- 4
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://opencontext.org/ answered with HTTP 200.
DNS records
- A
- 146.148.79.138
- AAAA
- No records found.
- MX
- 1 aspmx.l.google.com.
- 5 alt1.aspmx.l.google.com.
- NS
- ns-cloud-b3.googledomains.com.
- ns-cloud-b4.googledomains.com.
- ns-cloud-b1.googledomains.com.
- ns-cloud-b2.googledomains.com.
Live preview
This site sends "X-Frame-Options: DENY", which blocks embedding it here.
Since opencontext.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
- Domain-It!, Inc.
- Registered
- 2005-11-23
- Expires
- 2027-11-23
- Last changed
- 2026-08-11
Nameservers: ns-cloud-b1.googledomains.com, ns-cloud-b4.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com
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
- max-age=600
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- Not sent
- Strict-Transport-Security
- max-age=31536000; includeSubDomains
- X-Frame-Options
- DENY
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- same-origin
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://opencontext.org/HTTP 301→ https://opencontext.org/
- 2.
https://opencontext.org/HTTP 200
Meta tags
- Title
- Open Context: Publisher of Research Data
- Description
- Open Context publishes archaeological and related research data, images, maps, field notes, 3D models, and more. This information richly describes excavations, surveys, and collections from across the globe and even outer-space.
- Canonical
- https://opencontext.org/
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Open Context
- Open Graph description
- Open Context publishes archaeological and related research data, images, maps, field notes, 3D models, and more. This information richly describes excavations, surveys, and collections from across the globe and even outer-space.
- Open Graph image
- https://opencontext.org/static/oc/images/index/oc-blue-square-logo.png
- Open Graph type
- website
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 17
- Disallow rules (other agents)
- 160
Sitemap declared:
https://opencontext.org/sitemap.xml
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.