What powers tri-cercany.cz?
Last seen Aug 2026 · 31 technologies across 14 categories
CMS
Databases
MySQL
since Sep 2025
Font scripts
JavaScript frameworks
GSAP
since Sep 2025
JavaScript libraries
Isotope
since Sep 2025
Lightbox
since Apr 2026
Modernizr
since Sep 2025
prettyPhoto
since Sep 2025
Slick
since Sep 2025
Miscellaneous
Open Graph
since Sep 2025
RSS
since Sep 2025
Operating systems
Ubuntu
since Aug 2026
Page builders
wpBakery
since Sep 2025
Performance
Priority Hints
since Sep 2025
Programming languages
PHP
since Sep 2025
Security
HSTS
since Aug 2026
Web servers
Apache HTTP Server
since Sep 2025
Widgets
WordPress plugins
Jetpack
since May 2026
The Events Calendar
since Sep 2025
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 74% phone
- 26% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.11 / 10 · ranked #1,400,841 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.4 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 3400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 3.6 MB · 185 requests
- WordPress theme: oldhaven · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on O2-CZECH-REPUBLIC (90.183.52.123)
- DNS: forpsi.cz
- Email: no MX record returned
- Email security: DNSSEC signed
- Common Crawl link graph: rank 14,623,521
- Verified with: Google
DNS records as swept Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected HSTS Aug 2026
- detected Nginx Aug 2026
- detected Ubuntu Aug 2026
- detected core-js May 2026
- detected Jetpack May 2026
- dropped Animate.css Apr 2026
- detected Lightbox Apr 2026
- detected Google Font API Mar 2026
- detected Hammer.js Mar 2026
- detected Complianz Feb 2026
- detected Twitter Emoji (Twemoji) Dec 2025