What powers jacobsystems.cz?
Last seen Jun 2026 · 14 technologies across 10 categories
Analytics
Google Analytics
since Aug 2025
Hosting panels
Plesk
since Aug 2025
JavaScript libraries
Miscellaneous
Open Graph
since Aug 2025
RSS
since Aug 2025
Programming languages
PHP
since Aug 2025
Security
HSTS
since Aug 2025
Tag managers
Google Tag Manager
since Aug 2025
UI frameworks
Web frameworks
Web servers
Nginx
since Aug 2025
Audience
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.76 / 10 · ranked #17,559,593 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 3.7 MB · 57 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.