What powers sivak.cz?
Last seen Jun 2026 · 29 technologies across 15 categories
Analytics
Google Analytics
since Jan 2019
Caching
WordPress Super Cache
since Apr 2021
CMS
WordPress
since Jul 2020
Databases
MySQL
since Jul 2020
Font scripts
JavaScript libraries
Swiper
since Sep 2022
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Mobile frameworks
Performance
LazySizes
since Nov 2024
Priority Hints
since Aug 2023
Programming languages
PHP
since Jan 2019
Security
Really Simple SSL & Security
since Apr 2024
UI frameworks
Bootstrap
since Jul 2020
Web servers
Apache HTTP Server
since Jan 2019
WordPress plugins
EWWW Image Optimizer
since Nov 2024
Smart Slider 3
since Mar 2022
WordPress themes
Audience
- 75% phone
- 25% desktop
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.35 / 10 · ranked #2,783,788 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.4 s |
| INP | 75 ms |
| CLS | 0.1 |
| TTFB | 3300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 2.4 MB · 102 requests
- WordPress theme: fluida · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Debian Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025
- detected Complianz Nov 2025
- detected WordPress Super Cache Nov 2025