What powers zs-vesec.cz?
Last seen Sep 2026 · 15 technologies across 12 categories
JavaScript frameworks
JavaScript libraries
LMS
Moodle
since Jan 2021
Miscellaneous
Operating systems
Fedora
since Jan 2021
Photo galleries
PhotoSwipe
since Sep 2022
Programming languages
PHP
since Jan 2021
UI frameworks
Video players
YouTube
since Oct 2020
Web server extensions
Web servers
Apache HTTP Server
since May 2019
Webmail
Google Workspace
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 86% phone
- 14% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.42 / 10 · ranked #7,305,547 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 1.7 MB · 24 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on INTERNET-CZ Ktis 2, 384 03 Ktis (81.2.194.241)
- DNS: forpsi.cn
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 19,599,704, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| moodle.zs-vesec.cz | 11 |
| www.zs-vesec.cz | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- detected HTTP/3 Apr 2026