What powers 1zsjh.cz?
Last seen Jun 2026 · 13 technologies across 10 categories
CMS
Databases
MySQL
since Mar 2020
Font scripts
Google Font API
since Mar 2020
Twitter Emoji (Twemoji)
since Mar 2020
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Dec 2025
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since Mar 2020
Web servers
Apache Traffic Server
since Mar 2020
Webmail
Microsoft 365
since Aug 2022
Audience
- 100% phone
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.05 / 10 · ranked #11,814,578 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0 |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 6.4 MB · 26 requests
- WordPress theme: universal-preschool-pro-premium · all themes
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped HTTP/3 Jun 2026
- dropped Nginx Jan 2026
- detected Apache Traffic Server Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025
- detected WordPress Block Editor Dec 2025