What powers upp.cz?
Last seen Aug 2026 · 24 technologies across 17 categories
Analytics
Google Analytics
since Aug 2018
CDN
CMS
WordPress
since Aug 2018
Databases
MySQL
since Aug 2018
Issue trackers
Sentry
since Mar 2026
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Howler.js
since Apr 2025
Miscellaneous
Open Graph
since Sep 2022
PWA
since Apr 2025
Programming languages
Security
HSTS
since Apr 2025
SEO
Tag managers
Google Tag Manager
since Apr 2025
UI frameworks
Tailwind CSS
since Mar 2026
Video players
Web servers
Nginx
since Aug 2018
Webmail
Apple iCloud Mail
since Feb 2023
Microsoft 365
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Aug 2026 robots.txt appeared
- Aug 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 65% desktop
- 36% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.73 / 10 · ranked #750,286 of all domains
51 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.5 s |
| INP | 275 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Netlify
- Weight: 14.0 MB · 46 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.upp.cz | 18 |
| datacloud.upp.cz | 9 |