What powers jecas.cz?
Last seen Jun 2026 · 18 technologies across 12 categories
Analytics
Google Analytics
since Apr 2018
Vercel Analytics
since Aug 2025
Vercel Speed Insights
since Aug 2025
JavaScript frameworks
Svelte
since Aug 2025
Miscellaneous
PaaS
Vercel
since Aug 2025
Performance
Priority Hints
since Aug 2025
Programming languages
Security
HSTS
since Aug 2025
UI frameworks
SvelteKit
since Aug 2025
Tailwind CSS
since Apr 2022
Web frameworks
Nette Framework
since Apr 2018
Web servers
Apache HTTP Server
since Apr 2018
Webmail
Apple iCloud Mail
since Jun 2024
Widgets
Facebook
since Apr 2018
Audience
- 65% desktop
- 35% phone
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.97 / 10 · ranked #593,112 of all domains
48 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- CDN: Vercel
- Weight: 0.5 MB · 50 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| jecas.cz | 13 |
| www.jecas.cz | 5 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Nginx Sep 2025
- dropped PWA Sep 2025
- dropped Sentry Sep 2025
- detected HSTS Aug 2025
- detected Node.js Aug 2025
- detected Priority Hints Aug 2025
- detected Svelte Aug 2025
- detected SvelteKit Aug 2025
- detected Tailwind CSS Aug 2025
- detected Vercel Aug 2025
- detected Vercel Analytics Aug 2025
- detected Vercel Speed Insights Aug 2025
- detected Vite Aug 2025