What powers zebirkov.cz?
Last seen Jun 2026 · 30 technologies across 18 categories
Authentication
Facebook Login
since Jun 2021
Caching
Varnish
since Feb 2020
CDN
CMS
Databases
MySQL
since Feb 2020
SparkPost
since Aug 2022
Font scripts
Google Font API
since Feb 2020
Twitter Emoji (Twemoji)
since Feb 2020
Hosting
One.com
since Aug 2022
JavaScript frameworks
JavaScript libraries
Modernizr
since Feb 2020
Miscellaneous
Performance
Priority Hints
since Apr 2026
Programming languages
Tag managers
Google Tag Manager
since Feb 2020
UI frameworks
Web frameworks
Google Web Toolkit
since Jan 2021
Web servers
Apache HTTP Server
since Feb 2020
WordPress plugins
Draftpress HFCM
since Feb 2022
Audience
- 76% phone
- 24% desktop
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.67 / 10 · ranked #5,182,712 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 2.4 MB · 51 requests
- WordPress theme: rosa (child: rosa-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| zebirkov.cz | 22 |
| online.zebirkov.cz | 14 |
Full technology history →
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Recent changes
- detected Priority Hints Apr 2026