What powers physicsfox.org?
Last seen Oct 2026 · 12 technologies across 9 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
CDN
Font scripts
Font Awesome
since Dec 2022
Google Font API
since Dec 2022
JavaScript graphics
JavaScript libraries
Miscellaneous
HTTP/3
since Dec 2022
Programming languages
Python
since Dec 2022
Web frameworks
Django
since Dec 2022
Webmail
Apple iCloud Mail
since Apr 2025
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 63% desktop
- 37% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.07 / 10 · ranked #11,540,814 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.1 MB · 65 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.65.179, IPv6)
- DNS: Cloudflare DNS
- Email: iCloud Mail
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 1,636,549
- Verified with: Apple Business, Brevo, Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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