What powers jech.cz?
Last seen Jun 2026 · 23 technologies across 13 categories
Analytics
Google Ads Conversion Tracking
since Aug 2021
Google Analytics
since Jan 2019
Smartlook
since Nov 2022
CDN
jQuery CDN
since Mar 2022
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Live chat
Miscellaneous
Programming languages
PHP
since Jan 2019
Retargeting
Google Remarketing Tag
since Jul 2021
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Web frameworks
Web servers
Apache HTTP Server
since Jan 2019
Widgets
Facebook
since Jan 2019
Audience
- 83% phone
- 12% desktop
- 4% tablet
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.92 / 10 · ranked #1,737,513 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 5.0 MB · 52 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.jech.cz | 18 |
| jech.cz | 13 |
| konfigurator.jech.cz | 11 |
Full technology history →
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Recent changes
- dropped Google AdSense Apr 2026
- detected PWA Oct 2025