What powers zs-ustavni.cz?
Last seen Sep 2026 · 17 technologies across 10 categories
Analytics
Matomo Analytics
since Oct 2024
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
Font scripts
Google Font API
since Oct 2024
JavaScript libraries
Miscellaneous
PWA
since Oct 2024
Operating systems
Debian
since Oct 2024
Windows Server
since Jan 2019
Programming languages
PHP
since May 2019
Web frameworks
Nette Framework
since Oct 2024
Web servers
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 82% phone
- 18% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.00 / 10 · ranked #3,591,619 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 6.7 MB · 55 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (83.167.252.184, IPv6)
- DNS: websupport.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 10,595,488, 3 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.zs-ustavni.cz | 10 |
| bakalari.zs-ustavni.cz | 9 |