What powers terezin.cz?
Last seen Aug 2026 · 8 technologies across 5 categories
CDN
Cloudinary
since Jul 2026
Font scripts
Google Font API
since Jul 2019
JavaScript frameworks
Miscellaneous
Open Graph
since Apr 2025
PWA
since Apr 2025
Security
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.34 / 10 · ranked #1,082,801 of all domains
39 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| CLS | 0 |
| TTFB | 1600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 8.8 MB · 65 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Terezín
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on OPTONET-AS (78.156.158.200)
- DNS: ignum.com
- Email: g41.eu
- Email security: SPF (neutral), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 1,247,537, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.terezin.cz | 8 |
| terezin.cz | 7 |
Full technology history →
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Recent changes
- detected Cloudinary Jul 2026