What powers zav.cz?
Last seen Aug 2026 · 38 technologies across 20 categories
Analytics
Caching
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
PaaS
Programming languages
SEO
Tag managers
UI frameworks
Web frameworks
Web server extensions
Web servers
Webmail
WordPress plugins
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
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.30 / 10 · ranked #1,129,782 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 0.7 MB · 32 requests
- WordPress theme: zav · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on GIGASERVER (185.66.36.11)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (neutral), DMARC reject
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 8,843,995, 7 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.zav.cz | 20 |
| manag.zav.cz | 13 |
| houbar.zav.cz | 11 |
| student.zav.cz | 10 |
Full technology history →
Report an incorrect detection
Recent changes
- detected OpenSSL May 2026
- dropped OpenSSL Mar 2026
- detected Cloudflare Browser Insights Nov 2025