What powers vzcr.gov.cz?
Last seen Oct 2026 · 10 technologies across 7 categories
CDN
cdnjs
since Dec 2024
Cloudflare
since Dec 2024
JavaScript libraries
Miscellaneous
HTTP/3
since May 2026
Programming languages
PHP
since Dec 2024
UI frameworks
Web frameworks
Nette Framework
since Dec 2024
Web servers
Nginx
since Dec 2024
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 71% phone
- 29% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.40 / 10 · ranked #1,004,200 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English
- Weight: 1.5 MB · 37 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on IGNUM-AS Czech Republic (62.109.150.147, IPv6)
- DNS: nic.cz
- Email: no MX record returned
- Email security: DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 1,320,185
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected HTTP/3 May 2026