What powers rts.cz?
Last seen Sep 2026 · 18 technologies across 12 categories
Advertising
Adform
since Feb 2022
Analytics
Google Analytics
since Jan 2019
Font scripts
JavaScript frameworks
JavaScript libraries
Operating systems
Windows Server
since Jan 2019
Security
Tag managers
Google Tag Manager
since Oct 2021
UI frameworks
Bootstrap
since Aug 2022
Web frameworks
Web servers
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 58% desktop
- 38% phone
- 5% tablet
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.05 / 10 · ranked #1,506,343 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 1.5 MB · 59 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Rts,a.S.
- Founded: 1998
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on -Reserved AS- (85.217.167.21)
- DNS: regzone.cz
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 3072, expires Dec 2026
- Common Crawl link graph: rank 12,371,468, 4 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| rts.cz | 13 |
| www.rts.cz | 13 |
| cloud.rts.cz | 9 |
| eshop.rts.cz | 8 |