What powers ron.cz?
Last seen Jun 2026 · 12 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
prettyPhoto
since Jan 2019
Operating systems
Debian
since Jan 2019
Programming languages
Security
HSTS
since Sep 2022
Web server extensions
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
Audience
- 82% phone
- 18% desktop
Czechia
Slovakia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.36 / 10 · ranked #2,763,777 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 250 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 1.8 MB · 89 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| ultracau.ron.cz | 8 |
| www.ron.cz | 7 |
| www.ultracau.ron.cz | 7 |
| helpdesk.ron.cz | 4 |