What powers biooko.net?
Last seen Sep 2026 · 12 technologies across 10 categories
Analytics
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
Tag managers
Video players
Web frameworks
Web servers
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 Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 79% phone
- 21% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.07 / 10 · ranked #523,332 of all domains
165 referring domains · OpenPageRank
Search traffic
37 est. monthly organic visits (US)
85 keywords in Google's top 30
Core Web Vitals
| LCP | 1.3 s |
| INP | 225 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 3.2 MB · 68 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Bio OKO
- Founded: 1940
- Industry: Arts and entertainment (declares
Event) - Country: Czech Republic
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on TRESTEL-CZ-ASN (89.250.246.115)
- DNS: dexus.cz
- Email: dexus.net
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 2,956,747, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| biooko.net | 12 |
| www.biooko.net | 12 |
Full technology history →
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Recent changes
- detected HSTS May 2026