What powers izscr.cz?
Last seen Jun 2026 · 33 technologies across 13 categories
CDN
jsDelivr
since Dec 2020
Font scripts
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
CentOS
since Apr 2022
Programming languages
Node.js
since Jan 2019
TypeScript
since Apr 2026
Security
UI frameworks
Web frameworks
Web server extensions
Web servers
Webmail
RoundCube
since Jan 2023
Audience
- 64% phone
- 34% desktop
- 2% tablet
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.25 / 10 · ranked #93,010 of all domains
219 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 350 ms |
| CLS | 0.2 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 1.2 MB · 14 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| pco.izscr.cz | 12 |
| mail.ulk.izscr.cz | 11 |
| paleni.izscr.cz | 11 |
| tabory.izscr.cz | 11 |
| jsdh.izscr.cz | 6 |
| terinos.izscr.cz | 6 |
| gis.izscr.cz | 3 |
| rpp.izscr.cz | 3 |
| mail.pak.izscr.cz | 2 |
Full technology history →
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Recent changes
- dropped Chart.js Mar 2026
- dropped Google Analytics Feb 2026
- detected lit-element Dec 2025
- detected lit-html Dec 2025