What powers zskomtu.cz?
Last seen Sep 2026 · 15 technologies across 9 categories
Font scripts
Google Font API
since Dec 2021
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Popper
since Apr 2022
Programming languages
UI frameworks
Web frameworks
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 67% phone
- 33% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.72 / 10 · ranked #2,132,702 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 11.3 MB · 65 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on IP4ISP (176.62.225.50, IPv6)
- DNS: websupport.cz
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed, CAA
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 1,599,729, 3 hosts
- Verified with: Apple Business
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.zskomtu.cz | 13 |
| strava.zskomtu.cz | 6 |