What powers sefir.cz?
Last seen Jun 2026 · 14 technologies across 11 categories
Analytics
Google Analytics
since May 2021
CDN
Google Hosted Libraries
since Mar 2022
CMS
Databases
MySQL
since Apr 2019
JavaScript libraries
Lightbox
since Apr 2019
Miscellaneous
SWFObject
since Apr 2019
Photo galleries
Programming languages
PHP
since Apr 2019
Web servers
Nginx
since Jul 2025
WordPress plugins
WordPress themes
Twenty Ten
since Mar 2022
Audience
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.37 / 10 · ranked #2,746,514 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.8 s |
| CLS | 0 |
| TTFB | 2900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 41.2 MB · 50 requests
- WordPress theme: avada (child: avada-child-theme) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Apache HTTP Server Aug 2025