What powers ostrov-her.cz?
Last seen Sep 2026 · 15 technologies across 13 categories
Analytics
Ecommerce
Font scripts
Live chat
Load balancers
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
Web servers
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Search and AI assistants
- PetalBot Blocked
The other 32 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
1 of 33 AI crawlers blocked
Audience
- 79% phone
- 21% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.73 / 10 · ranked #4,797,303 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 3.4 MB · 96 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on GREENDATA (109.248.251.41)
- DNS: oxiweb.sk
- Email: ostrov-her.cz
- Email security: SPF (soft fail), DMARC quarantine, CAA
- SSL: Let's Encrypt, RSA 4096, wildcard, expires Dec 2026
- Common Crawl link graph: rank 8,331,902, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted