What powers zelezarstviburkon.cz?
Last seen Sep 2026 · 10 technologies across 7 categories
Analytics
Google Analytics
since Apr 2019
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
Programming languages
PHP
since Feb 2022
Security
reCAPTCHA
since Apr 2019
Web servers
Apache HTTP Server
since Apr 2019
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 checked
- ai.txt not checked
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
1.49 / 10 · ranked #6,603,697 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.2 MB · 59 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CASABLANCA-AS Internet & Collocation Provider (81.0.225.133, IPv6)
- DNS: tele3.cz
- Email: pixeldesign.cz
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Oct 2026
- Common Crawl link graph: rank 83,423,990, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted