What powers o5.cz?
Last seen Sep 2026 · 28 technologies across 15 categories
Analytics
CMS
Databases
Ecommerce
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Marketing automation
Miscellaneous
Performance
Programming languages
Security
Tag managers
Web servers
WordPress plugins
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 92% phone
- 8% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.81 / 10 · ranked #1,965,654 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 175 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 2.4 MB · 79 requests
- WordPress theme: jupiterx · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on WEDOS (46.28.106.154)
- DNS: websupport.cz
- Email: Seznam Email
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 14,228,929, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected GSAP May 2026
- dropped CookieYes Nov 2025
- detected Facebook Pixel Nov 2025
- dropped Lightbox Nov 2025