What powers ustrcr.cz?
Last seen Jun 2026 · 18 technologies across 13 categories
A/B Testing
Analytics
Google Analytics
since Aug 2018
CMS
WordPress
since Aug 2018
Databases
MySQL
since Aug 2018
Font scripts
JavaScript Libraries
Lightbox
since Apr 2019
Marketing automation
MailChimp
since Aug 2022
Miscellaneous
Operating systems
Debian
since Dec 2023
Performance
Priority Hints
since Nov 2023
Programming languages
PHP
since Aug 2018
UI frameworks
Web servers
Apache HTTP Server
since Aug 2018
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| totalitarian regime | #50 | 4 |
| behind the iron curtain | #45 | 1 |
| serbia communism | #13 | 1 |
| slovenia communism | #7 | 1 |
| nkvd vs kgb | #44 | 1 |
| nkvd vs kgb | #18 | 1 |
| iron curtain pictures | #49 | 1 |
| is serbia communist | #15 | 1 |
| labor migration | #96 | 1 |
| lennonova ze | #26 | 1 |
| czechoslovakia revolt | #72 | 1 |
| czechoslovak secret police | #12 | 1 |
| year 1945 | #58 | 0 |
| bulgarian communism | #15 | 0 |
| bulgaria ussr | #19 | 0 |
| bulgaria soviet union | #30 | 0 |
| bulgaria communist | #13 | 0 |
| cold war czechoslovakia | #26 | 0 |
| communist totalitarianism | #74 | 0 |
| communist totalitarian | #44 | 0 |
| communist genocides | #19 | 0 |
| communist crimes | #74 | 0 |
| communist crimes | #14 | 0 |
| communism totalitarian | #71 | 0 |
| communism in slovakia | #35 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 59% phone
- 37% desktop
- 4% tablet
Czechia
Slovakia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.61 / 10 · ranked #68,908 of all domains
414 referring domains · OpenPageRank
Search traffic
15 est. monthly organic visits (US)
65 keywords in Google's top 30
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech (Czechia)
- Weight: 8.7 MB · 92 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.ustrcr.cz | 12 |
| katalog.ustrcr.cz | 8 |
| old.ustrcr.cz | 6 |