What powers 
sjch.cz?
Last seen Oct 2026 · 14 technologies across 11 categories
Analytics
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
Security
Tag managers
Web frameworks
Web servers
Webmail
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 53% desktop
- 47% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.08 / 10 · ranked #519,632 of all domains
70 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Czech (Czechia)
- Weight: 2.2 MB · 24 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Mar 2017 (9 years) via Gransy s.r.o., renews Mar 2029
- Hosted on INTERNET-CZ INTERNET CZ, a.s. (193.105.158.197)
- DNS: gransy.com
- Email: Google Workspace
- Email security: no SPF record, DMARC monitor only, MTA-STS
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 3,001,610, 6 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| award.sjch.cz | 11 |
| www.sjch.cz | 10 |
Full technology history →
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Recent changes
- detected Google Maps Jan 2026
- detected HSTS Jan 2026