What powers institutvk.cz?
Last seen Aug 2026 · 16 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
Maps
Google Maps
since Jan 2019
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Tag managers
Google Tag Manager
since Feb 2021
Video players
YouTube
since Mar 2019
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 65% phone
- 29% desktop
- 6% tablet
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.21 / 10 · ranked #452,394 of all domains
100 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 5.5 MB · 94 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Václav Klaus' Institute
- Founded: 2012
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on WEB4U (81.91.86.12)
- DNS: web4u.cz
- Email: MailChannels
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 686,854, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.institutvk.cz | 14 |
| institutvk.cz | 10 |