Domain report
physicsforums.com
physicsforums.com ranks in the top 0.019% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.019%
- 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://physicsforums.com/ answered with HTTP 200.
DNS records
- A
- 104.26.14.132
- 104.26.15.132
- 172.67.68.135
- AAAA
- 2606:4700:20::681a:e84
- 2606:4700:20::681a:f84
- 2606:4700:20::ac43:4487
- MX
- 1 aspmx.l.google.com.
- 5 alt1.aspmx.l.google.com.
- 5 alt2.aspmx.l.google.com.
- 10 alt3.aspmx.l.google.com.
- 10 alt4.aspmx.l.google.com.
- NS
- konnor.ns.cloudflare.com.
- sandra.ns.cloudflare.com.
Live preview
This site's Content-Security-Policy restricts embedding to specific origins ("frame-ancestors 'self'"), which does not include StatsMyWeb.
Since physicsforums.com 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: The operation was aborted due to timeout
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=utf-8
- Cache-Control
- private, no-cache, max-age=0
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- default-src 'self' https: data: blob:; base-uri 'self'; object-src 'none'; frame-ancestors 'self'; form-action 'self'; upgrade-insecure-requests; img-src 'self' https: data: blob:; font-src 'self' https: data:; style-src 'self' https: 'unsafe-inline'; script-src 'self' https: 'unsafe-inline' 'unsafe-eval' 'wasm-unsafe-eval'; connect-src 'self' https: wss:; frame-src https: data:; media-src 'self' https: blob:; worker-src 'self' blob:; manifest-src 'self'
- Strict-Transport-Security
- max-age=31536000; includeSubDomains; preload
- X-Frame-Options
- Not sent
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- same-origin
- Permissions-Policy
- interest-cohort=()
Redirect chain
- 1.
http://physicsforums.com/HTTP 301→ https://physicsforums.com/
- 2.
https://physicsforums.com/HTTP 301→ https://www.physicsforums.com/
- 3.
https://www.physicsforums.com/HTTP 200
Meta tags
- Title
- Physics Forums: Science Discussion, Homework Help, Expert Community
- Description
- Physics Forums is a community of scientists, mathematicians, engineers and students. Ask questions and get guidance toward real understanding — not just...
- Canonical
- https://www.physicsforums.com/
- Robots
- max-snippet:-1, max-image-preview:large, max-video-preview:-1
- Generator
- Not set
- Open Graph title
- Physics Forums - Science by Humans
- Open Graph description
- Physics Forums is a community of scientists, mathematicians, engineers and students. Ask questions and get guidance toward real understanding — not just answers — across physics, math and engineering.
- Open Graph image
- https://www.physicsforums.com/styles/physicsforums/images/brand/pf-og-1200x630.png
- Open Graph type
- website
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 23
- Disallow rules (other agents)
- 0
Sitemap declared:
https://www.physicsforums.com/sitemap.xml
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
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