What powers zz.cz?
Last seen Jun 2026 · 12 technologies across 12 categories
Analytics
Google Analytics
since Mar 2021
CDN
Google Hosted Libraries
since Feb 2022
Font scripts
Google Font API
since Mar 2021
JavaScript frameworks
JavaScript libraries
Miscellaneous
PWA
since Aug 2022
Programming languages
Java
since Aug 2021
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Mar 2021
UI frameworks
Web servers
Apache HTTP Server
since Mar 2021
Webmail
Google Workspace
since Aug 2022
Audience
- 96% phone
- 4% desktop
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.62 / 10 · ranked #5,515,178 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.7 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 0.9 MB · 28 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Cart Functionality Jun 2026
- dropped Didomi Mar 2026
- dropped Prebid Mar 2026
- dropped Priority Hints Mar 2026
- detected Cart Functionality Jan 2026
- dropped ID5 Jan 2026
- dropped Cart Functionality Dec 2025
- dropped Preact Nov 2025
- detected Cart Functionality Oct 2025
- detected Preact Sep 2025
- detected ID5 Aug 2025
- detected Prebid Aug 2025
- detected Priority Hints Aug 2025