What powers zsostasov.cz?
Last seen Sep 2026 · 12 technologies across 9 categories
Analytics
Matomo Analytics
since Aug 2020
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
Operating systems
Debian
since Apr 2019
Programming languages
PHP
since Apr 2019
Web frameworks
Nette Framework
since Apr 2019
Web servers
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 90% phone
- 10% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.17 / 10 · ranked #3,171,205 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 2.0 MB · 56 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (83.167.252.184)
- DNS: forpsi.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 14,745,745, 5 hosts
DNS records as swept Sep 2026. How the web is hosted