What powers zsrychnov.cz?
Last seen Jul 2026 · 20 technologies across 12 categories
CMS
WordPress
since Oct 2023
Databases
MySQL
since Oct 2023
Font scripts
JavaScript libraries
Isotope
since Oct 2023
Miscellaneous
Page builders
Colibri WP
since May 2026
WordPress Site Editor
since May 2026
Performance
Priority Hints
since Mar 2024
Programming languages
Security
Really Simple SSL & Security
since Jun 2026
UI frameworks
Web servers
Apache HTTP Server
since May 2019
Webmail
Microsoft 365
since Oct 2023
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.50 / 10 · ranked #6,543,351 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 3.0 MB · 46 requests
- WordPress theme: twentytwentyfive · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.zsrychnov.cz | 15 |
| zsrychnov.cz | 15 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Imagely NextGEN Gallery Jun 2026
- dropped Lightbox Jun 2026
- dropped NextGEN Gallery Jun 2026
- detected Really Simple SSL & Security Jun 2026
- detected Colibri WP May 2026
- detected Priority Hints May 2026
- detected WordPress Site Editor May 2026
- dropped Priority Hints Apr 2026
- dropped WordPress Block Editor Apr 2026
- detected Priority Hints Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025
- detected WordPress Block Editor Dec 2025
- dropped Priority Hints Oct 2025
- dropped WordPress Block Editor Oct 2025