What powers zachranka.cz?
Last seen Jun 2026 · 35 technologies across 18 categories
Advertising
Twitter Ads
since Nov 2022
Authentication
Facebook Login
since Nov 2022
Caching
WordPress Super Cache
since Jun 2025
CDN
cdnjs
since Dec 2022
Cloudflare
since Dec 2022
jQuery CDN
since Dec 2025
jsDelivr
since Dec 2025
Unpkg
since Dec 2025
CMS
Databases
MySQL
since Mar 2020
Font scripts
Google Font API
since Mar 2020
Twitter Emoji (Twemoji)
since Mar 2020
JavaScript frameworks
GSAP
since Nov 2022
JavaScript libraries
Slick
since Nov 2022
Miscellaneous
Operating systems
Debian
since May 2023
Programming languages
PHP
since Mar 2020
Security
Cloudflare Bot Management
since Mar 2025
UI frameworks
Web frameworks
Nette Framework
since Dec 2025
Web servers
Webmail
Apple iCloud Mail
since Oct 2025
RoundCube
since May 2023
Widgets
Twitter
since Nov 2022
Audience
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.98 / 10 · ranked #1,627,058 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- Weight: 1.3 MB · 66 requests
- WordPress theme: kallyas · all themes
- Structured data: Microdata, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.zachranka.cz | 22 |
| vzdelavani.zachranka.cz | 14 |
| webmail.zachranka.cz | 8 |
| kapacita.zachranka.cz | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Bot Management May 2026
- detected HTTP/3 Feb 2026
- detected OpenResty Feb 2026
- detected Twitter Emoji (Twemoji) Dec 2025
- dropped Cloudflare Bot Management Nov 2025
- detected Apple iCloud Mail Oct 2025