What powers psjg.cz?
Last seen Jul 2026 · 27 technologies across 18 categories
A/B Testing
CDN
jsDelivr
since Jan 2021
CMS
Databases
MySQL
since Jan 2019
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
LMS
Moodle
since Nov 2022
Miscellaneous
Operating systems
Debian
since Jan 2019
Windows Server
since Jan 2019
Programming languages
UI frameworks
Video players
VideoJS
since Nov 2022
Web frameworks
Web server extensions
Web servers
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
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
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.83 / 10 · ranked #4,194,671 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 2.2 MB · 51 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- První soukromé jazykové gymnázium Hradec Králové
- Founded: 1997
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on INTERNET-CZ Ktis 2, 384 03 Ktis (81.2.196.170)
- DNS: forpsi.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- Common Crawl link graph: rank 10,257,607, 5 hosts
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| is.psjg.cz | 15 |
| elearning.psjg.cz | 14 |
| old.psjg.cz | 12 |
| psjg.cz | 12 |
| isbeta.psjg.cz | 11 |
| prijimacky.psjg.cz | 4 |