What powers prion.cz?
Last seen Oct 2026 · 5 technologies across 4 categories
Miscellaneous
HTTP/3
since Jul 2024
Programming languages
PHP
since Oct 2021
Web frameworks
Nette Framework
since Feb 2026
Web servers
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 52% phone
- 48% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.64 / 10 · ranked #5,384,520 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 0.0 MB · 5 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Websupport (37.9.175.164)
- DNS: forpsi.cz
- Email: cofis.cz
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- Common Crawl link graph: rank 27,353,066, 2 hosts
DNS records as swept Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Bootstrap Mar 2026
- dropped core-js Mar 2026
- dropped FancyBox Mar 2026
- dropped FlexSlider Mar 2026
- dropped Font Awesome Mar 2026
- dropped Google Font API Mar 2026
- dropped jQuery Mar 2026
- dropped jQuery Migrate Mar 2026
- dropped jQuery Mobile Mar 2026
- dropped jQuery UI Mar 2026
- dropped MySQL Mar 2026
- dropped Photo Gallery Mar 2026
- dropped Popper Mar 2026
- dropped RSS Mar 2026
- dropped Slider Revolution Mar 2026
- dropped WordPress Mar 2026