What powers trest.cz?
Last seen Aug 2026 · 33 technologies across 18 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Google Sign-in
since Jan 2025
CDN
Comment systems
Ecommerce
Cart Functionality
since Oct 2025
Font scripts
Google Font API
since Feb 2019
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Maps
Miscellaneous
Operating systems
Debian
since Oct 2022
Windows Server
since Jan 2019
Programming languages
Security
reCAPTCHA
since Jan 2019
UI frameworks
Web frameworks
Express
since Oct 2022
Web servers
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 83% phone
- 17% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.93 / 10 · ranked #628,263 of all domains
55 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.2 MB · 80 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Třešť
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on OPTONET-AS (78.156.158.199, IPv6)
- DNS: onebit.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 1,247,341, 11 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| turista.trest.cz | 21 |
| portal.trest.cz | 9 |
| trest.cz | 7 |
| vstupenky.trest.cz | 7 |
| www.trest.cz | 7 |
| m.trest.cz | 5 |
| strava.trest.cz | 5 |