Domain report
phys.org
phys.org ranks in the top 0.00029% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 8 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.00029%
- Hosts observed
- 8
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://phys.org/ answered with HTTP 200.
DNS records
- A
- 72.251.236.55
- AAAA
- 2001:48c8:17:1::55
- MX
- 10 mx.physorg.com.
- NS
- gns3.cloudns.net.
- gns2.cloudns.net.
- gns4.cloudns.net.
- gns1.cloudns.net.
Live preview
This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.
Since phys.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;charset=UTF-8
- Cache-Control
- Not sent
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- Not sent
- Strict-Transport-Security
- Not sent
- X-Frame-Options
- SAMEORIGIN
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- origin-when-cross-origin
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://phys.org/HTTP 301→ https://phys.org/
- 2.
https://phys.org/HTTP 200
Meta tags
- Title
- Phys.org - News and Articles on Science and Technology
- Description
- Daily science news on research developments, technological breakthroughs and the latest scientific innovations
- Canonical
- https://phys.org/
- Robots
- INDEX,FOLLOW
- Generator
- Not set
- Open Graph title
- Phys.org - News and Articles on Science and Technology
- Open Graph description
- Daily science news on research developments, technological breakthroughs and the latest scientific innovations
- Open Graph image
- https://phys.b-cdn.net/tmpl/v5/img/phys_308px.png
- Open Graph type
- website
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 5
- Disallow rules (other agents)
- 34
Sitemap declared:
https://phys.org/sitemap/indx/
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- Google Analyticsanalytics
Found "googletagmanager.com/gtag/js" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.