What powers vasstav.cz?
Last seen Sep 2026 · 15 technologies across 10 categories
Analytics
Google Analytics
since May 2021
CDN
jsDelivr
since May 2021
Font scripts
Google Font API
since May 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
Programming languages
PHP
since May 2021
Security
HSTS
since Sep 2022
UI frameworks
Tailwind CSS
since Aug 2024
Web frameworks
Nette Framework
since May 2021
Web servers
Apache HTTP Server
since May 2021
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 checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.24 / 10 · ranked #3,012,047 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 1.1 MB · 30 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (81.31.38.149)
- Email: webglobe.cz
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 17,908,845
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted