What powers istan.cz?
Last seen Sep 2026 · 12 technologies across 9 categories
Advertising
Analytics
Authentication
Font Scripts
JavaScript graphics
JavaScript libraries
Operating systems
Web servers
Widgets
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.84 / 10 · ranked #1,900,663 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.9 s |
| CLS | 0 |
| TTFB | 3800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 0.2 MB · 15 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on IGNUM-AS Czech Republic (213.109.164.191)
- Email: vergilio.eu
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 4096, wildcard, expires Nov 2026
- Common Crawl link graph: rank 15,720,684, 15 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| brezova.istan.cz | 7 |
| relaxa.istan.cz | 7 |
| www.istan.cz | 6 |
| is.istan.cz | 5 |
Full technology history →
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