What powers truhla.cz?
Last seen Aug 2026 · 36 technologies across 21 categories
Accessibility
Pojo.me
since Sep 2022
Analytics
Google Analytics
since Dec 2022
CDN
CMS
WordPress
since Sep 2022
Databases
MySQL
since Sep 2022
Font scripts
Google Font API
since Sep 2022
Hosting
WordPress Multisite
since Jul 2023
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Windows Server
since Jan 2019
Programming languages
PHP
since Sep 2022
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Sep 2022
UI frameworks
Video players
VideoJS
since Nov 2022
Web frameworks
Web servers
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
WordPress themes
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 70% phone
- 30% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.08 / 10 · ranked #1,460,399 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 0.5 MB · 36 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Název školy (Jiří Guth-Jarkovský Gymnasium on Wikidata)
- Founded: 1874
- Country: Czech Republic
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on FORTION (185.175.85.22)
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- Common Crawl link graph: rank 11,787,851, 5 hosts
DNS records as swept Aug 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| gymnazium.truhla.cz | 26 |
| zakladniskola.truhla.cz | 22 |
| truhla.cz | 19 |
| www.truhla.cz | 19 |
| bakalari.truhla.cz | 9 |
| trs.truhla.cz | 9 |
| sos.truhla.cz | 7 |
| new.truhla.cz | 4 |
Full technology history →
Report an incorrect detection
Recent changes
- detected FancyBox Jul 2026
- detected Isotope Jul 2026
- detected Slick Jul 2026
- detected Handlebars Oct 2025
- detected VideoJS Oct 2025