What powers zusihurnika.cz?
Last seen Sep 2026 · 7 technologies across 6 categories
Font scripts
Google Font API
since Jul 2020
JavaScript libraries
Miscellaneous
HTTP/3
since Oct 2023
Open Graph
since Sep 2022
Security
HSTS
since Sep 2022
UI frameworks
Pure CSS
since Jul 2020
Web servers
Nginx
since Jul 2020
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. 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
1.62 / 10 · ranked #5,533,420 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 0.4 MB · 26 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Základní umělecká škola Ilji Hurníka, Praha 2, Slezská 21 (Základní umělecká škola Ilji Hurníka on Wikidata)
- Founded: 1953
- Industry: Professional services (declares
ProfessionalService) - Country: Czech Republic
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on GIGASERVER (185.66.36.4)
- DNS: regzone.cz
- Email: zoner.com
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 25,698,906, 3 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted