What powers zsjrk.cz?
Last seen Jun 2026 · 11 technologies across 9 categories
CDN
cdnjs
since May 2022
Cloudflare
since May 2022
CMS
Joomla
since Mar 2020
Font scripts
Font Awesome
since Nov 2021
Google Font API
since Dec 2024
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Programming languages
PHP
since Mar 2020
UI frameworks
Web servers
Apache Traffic Server
since Nov 2021
Webmail
Google Workspace
since Aug 2022
Audience
- 100% phone
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.25 / 10 · ranked #9,345,043 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech (Czechia)
- Weight: 0.9 MB · 27 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| zsjrk.cz | 10 |
| www.zsjrk.cz | 7 |