What powers portal.cz?
Last seen Jun 2026 · 17 technologies across 8 categories
Analytics
Google Analytics
since Aug 2018
JavaScript Frameworks
JavaScript libraries
Miscellaneous
Babel
since Mar 2020
Open Graph
since Sep 2022
PWA
since Aug 2022
Webpack
since Jul 2018
webpack-2
since Jun 2018
Programming languages
Node.js
since May 2020
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jun 2018
Web servers
Nginx
since Apr 2018
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 70% phone
- 28% desktop
- 3% tablet
Czechia
Slovakia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.81 / 10 · ranked #56,100 of all domains
433 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 3.7 MB · 76 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| nakladatelstvi.portal.cz | 13 |
| obchod.portal.cz | 10 |
| www.portal.cz | 6 |