What powers jrc.cz?
Last seen Jun 2026 · 26 technologies across 14 categories
Advertising
AppNexus
since Apr 2021
Analytics
Cloudflare Browser Insights
since Sep 2022
Google Ads Conversion Tracking
since Jul 2021
Google Analytics
since Jun 2018
Google Analytics Enhanced eCommerce
since Jul 2021
Microsoft Clarity
since Apr 2024
Snowplow Analytics
since Jun 2021
CDN
Cloudflare
since May 2022
Ecommerce
Cart Functionality
since Oct 2021
JavaScript libraries
prettyPhoto
since Apr 2018
Tiny Slider
since Oct 2022
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Apr 2018
UI frameworks
Web frameworks
Web servers
Webmail
Microsoft 365
since Aug 2022
Widgets
Facebook
since Jun 2018
Audience
- 76% phone
- 23% desktop
- 1% tablet
Czechia
Slovakia
Germany
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.69 / 10 · ranked #353,109 of all domains
70 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Subdomains
| Host | Techs |
|---|---|
| webdev.jrc.cz | 18 |
| www.jrc.cz | 10 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Apple Business Chat Dec 2025
- dropped WhatsApp Business Chat Dec 2025
- detected Microsoft Clarity Nov 2025