What powers petrbende.cz?
Last seen Aug 2026 · 8 technologies across 6 categories
JavaScript frameworks
JavaScript libraries
Tag managers
Google Tag Manager
since Feb 2020
Video players
YouTube
since Feb 2020
Web servers
Apache HTTP Server
since Feb 2020
Webmail
Google Workspace
since Aug 2022
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.24 / 10 · ranked #1,206,933 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 3.4 MB · 103 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SATT-AS (31.31.227.66, IPv6)
- DNS: Active 24
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 9,359,194, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted