What powers polstrin.cz?
Last seen Jun 2026 · 25 technologies across 14 categories
Analytics
Google Analytics
since Jan 2019
CDN
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Mailgun
since Aug 2022
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
Performance
Priority Hints
since Apr 2026
Programming languages
PHP
since Jan 2019
SEO
Tag managers
Google Tag Manager
since Jan 2019
Web servers
Nginx
since Jan 2019
WordPress plugins
Audience
- 64% phone
- 36% desktop
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.43 / 10 · ranked #974,253 of all domains
36 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech (Czechia)
- Weight: 2.5 MB · 94 requests
- WordPress theme: polstrin-theme · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Autoptimize May 2026
- dropped Contact Form 7 May 2026
- dropped FancyBox May 2026
- dropped Google Font API May 2026
- dropped Google Hosted Libraries May 2026
- detected jQuery UI May 2026
- dropped Lightbox May 2026
- dropped Modernizr May 2026
- detected Popup Maker May 2026
- dropped Select2 May 2026
- dropped wpBakery May 2026
- detected Choices Apr 2026
- detected Complianz Apr 2026
- detected GSAP Apr 2026
- detected jsDelivr Apr 2026
- detected Lenis Apr 2026
- detected Priority Hints Apr 2026
- detected Swiper Apr 2026
- detected Unpkg Apr 2026
- detected web-vitals Apr 2026
- dropped jQuery UI Jan 2026
- dropped Popup Maker Jan 2026
- detected jQuery UI Nov 2025
- detected Popup Maker Nov 2025
- dropped reCAPTCHA Sep 2025