What powers zumbera.cz?
Last seen Sep 2026 · 9 technologies across 7 categories
CDN
cdnjs
since Jul 2022
Cloudflare
since Jul 2022
Cookie compliance
Editors
WebSite X5
since Apr 2019
JavaScript libraries
Operating systems
Windows Server
since Apr 2019
Web frameworks
Microsoft ASP.NET
since Apr 2019
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.76 / 10 · ranked #17,551,132 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 0.8 MB · 42 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on ACTIVE24-AS www.active24.cz (81.95.98.159, IPv6)
- DNS: websupport.cz
- Email: no MX record returned
- Email security: DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 42,500,000
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted