What powers collm.cz?
Last seen Jun 2026 · 19 technologies across 11 categories
Analytics
Authentication
Facebook Login
since Jul 2021
CDN
jsDelivr
since Aug 2023
Ecommerce
Cart Functionality
since Nov 2021
Shoptet
since Jan 2019
JavaScript libraries
Miscellaneous
HTTP/3
since May 2026
Open Graph
since Sep 2022
Performance
Priority Hints
since Apr 2025
Programming languages
PHP
since Jan 2019
UI frameworks
Web servers
Webmail
Google Workspace
since Aug 2022
Audience
- 72% phone
- 28% desktop
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.11 / 10 · ranked #3,312,002 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 5.9 MB · 78 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped PWA Jun 2026
- dropped Google Font API May 2026
- detected HTTP/3 May 2026
- detected Microsoft Clarity May 2026
- detected OpenResty May 2026
- detected Cart Functionality Apr 2026
- detected PWA Apr 2026
- dropped Cart Functionality Aug 2025
- dropped Google Analytics Enhanced eCommerce Aug 2025