What powers zsskolnivr.cz?
Last seen Sep 2026 · 19 technologies across 13 categories
Analytics
Cloudflare Browser Insights
since Feb 2026
CDN
Cloudflare
since Aug 2022
CMS
Databases
MySQL
since Apr 2020
Font scripts
JavaScript libraries
Miscellaneous
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Sep 2023
Photo galleries
Imagely NextGEN Gallery
since Aug 2022
NextGEN Gallery
since Apr 2020
Programming languages
PHP
since Apr 2020
Webmail
Microsoft 365
since Aug 2022
WordPress themes
WEN Themes Education Hub
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 found
- ai.txt not found
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
2.36 / 10 · ranked #2,757,990 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 1.1 MB · 44 requests
- WordPress theme: education-hub · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.9.119, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 25,957,372
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted