What powers jizerkyprovas.cz?
Last seen Aug 2026 · 10 technologies across 8 categories
CDN
CMS
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
Web servers
AI Crawlers
Blocks 2 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Bytespider Blocked
- CCBot Allowed
- ClaudeBot Allowed
- GPTBot Allowed
Search and AI assistants
- PetalBot Blocked
- PerplexityBot Allowed
The other 27 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
2 of 33 AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.20 / 10 · ranked #1,269,767 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 4.0 MB · 24 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SECURITYNET-AS (46.36.40.248)
- DNS: ignum.cz
- Email: jizerkyprovas.cz
- Email security: SPF (soft fail), DMARC reject, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 3,243,907, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted