What powers physicsbrawl.org?
Last seen Sep 2026 · 13 technologies across 8 categories
CDN
Font scripts
Google Font API
since Dec 2021
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Dec 2020
Security
HSTS
since Feb 2024
Web frameworks
Nette Framework
since Dec 2020
Web servers
Webmail
Google Workspace
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 56% phone
- 44% desktop
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.81 / 10 · ranked #4,284,726 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 2.1 MB · 37 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on CESNET2 (195.113.17.221, IPv6)
- DNS: forpsi.cz
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 11,217,379, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026. How the web is hosted