What powers zdarna.eu?
Last seen Sep 2026 · 21 technologies across 14 categories
Analytics
CDN
Comment systems
Font scripts
JavaScript libraries
Maps
Miscellaneous
Programming languages
Security
UI frameworks
Web frameworks
Web servers
Webmail
Widgets
AI Crawlers
Blocks 2 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- ClaudeBot Blocked
Search and AI assistants
- Amazonbot Blocked
The other 31 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
2 of 33 AI crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.61 / 10 · ranked #2,299,750 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 3.2 MB · 30 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Žďárná
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on DigitalOcean (144.126.244.91)
- DNS: web4u.cz
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 101,869, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| zdarna.eu | 18 |
| sdh.zdarna.eu | 6 |
| www.zdarna.eu | 6 |