What powers zsskolni.cz?
Last seen Jun 2026 · 15 technologies across 10 categories
CMS
WordPress
since Apr 2019
Databases
MySQL
since Apr 2019
Font scripts
Google Font API
since Apr 2019
Twitter Emoji (Twemoji)
since Apr 2019
JavaScript libraries
Miscellaneous
Programming languages
PHP
since Apr 2019
SEO
Video players
Web servers
Apache Traffic Server
since Jun 2021
Webmail
Apple iCloud Mail
since Oct 2025
Google Workspace
since Aug 2022
Audience
- 85% phone
- 15% desktop
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.52 / 10 · ranked #6,365,122 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 1.0 MB · 27 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected All in One SEO Jun 2026
- detected Open Graph Jun 2026
- dropped Priority Hints Jun 2026
- detected PWA Jun 2026
- detected Twitter Emoji (Twemoji) Jun 2026
- detected Apple iCloud Mail Oct 2025
- dropped Really Simple SSL & Security Oct 2025
- dropped WordPress Super Cache Oct 2025