What powers cruncher.cz?
Last seen Jun 2026 · 11 technologies across 6 categories
Font scripts
JavaScript libraries
decimal.js
since Jan 2026
Operating systems
Ubuntu
since Sep 2021
UI frameworks
Web servers
Webmail
Microsoft 365
since Aug 2022
Audience
- 62% phone
- 35% desktop
- 3% tablet
Czechia
Slovakia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.04 / 10 · ranked #11,975,638 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 1.7 MB · 34 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| ivyzkumy.cruncher.cz | 10 |
| ivyzkumy2.cruncher.cz | 10 |
| ivyzkumy1.cruncher.cz | 8 |
Full technology history →
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Recent changes
- dropped IIS Feb 2026
- dropped jQuery UI Feb 2026
- dropped Microsoft ASP.NET Feb 2026
- dropped PHP Feb 2026
- dropped Windows Server Feb 2026