What powers vosis.cz?
Last seen Aug 2026 · 20 technologies across 14 categories
Analytics
Google Analytics
since Sep 2020
CMS
Databases
MySQL
since Sep 2020
Font scripts
Google Font API
since Sep 2020
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Operating systems
Windows Server
since Sep 2020
Programming languages
Video players
Web frameworks
Microsoft ASP.NET
since Sep 2020
Web server extensions
Web servers
Webmail
Apple iCloud Mail
since Oct 2025
Microsoft 365
since Aug 2022
WordPress plugins
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 61% phone
- 39% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.83 / 10 · ranked #1,918,232 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 9.4 MB · 67 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- College of Information Services in Prague
- Founded: 1996
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on CONNECTPLUS (185.140.244.170)
- DNS: forpsi.cz
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- Common Crawl link graph: rank 9,167,103, 11 hosts
- Verified with: Adobe, Apple Business, Autodesk, Google, Microsoft 365
DNS records as swept Aug 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.vosis.cz | 17 |
| bakalari.vosis.cz | 6 |
| prihlaska.vosis.cz | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Apple iCloud Mail Oct 2025
- dropped cdnjs Oct 2025
- dropped Cloudflare Oct 2025
- dropped Font Awesome Oct 2025