What powers tref.cz?
Last seen Jun 2026 · 12 technologies across 10 categories
Advertising
Analytics
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
Cookie compliance
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Programming languages
PHP
since Sep 2021
Security
Cloudflare Bot Management
since May 2022
Web servers
Apache HTTP Server
since Aug 2025
Widgets
ShareThis
since Mar 2022
Audience
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.39 / 10 · ranked #39,605,597 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 275 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 11.5 MB · 210 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected 33Across Apr 2026
- detected ShareThis Apr 2026
- dropped 33Across Mar 2026
- dropped ShareThis Mar 2026
- detected 33Across Jan 2026
- detected ShareThis Jan 2026
- dropped Adobe Audience Manager Oct 2025
- dropped Azure Oct 2025
- dropped ShareThis Oct 2025
- detected Apache HTTP Server Aug 2025