What powers reznicka.cz?
Last seen Aug 2026 · 22 technologies across 14 categories
Advertising
Adform
since Feb 2022
Analytics
Google Analytics
since Sep 2019
Font scripts
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Jul 2026
PWA
since Jul 2026
Operating systems
Ubuntu
since Jul 2026
Windows Server
since Jan 2019
Performance
Priority Hints
since Jul 2026
Programming languages
Node.js
since Jul 2026
Security
reCAPTCHA
since Jul 2026
Tag managers
Google Tag Manager
since Sep 2019
UI frameworks
Tailwind CSS
since Jul 2026
Web frameworks
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 80% phone
- 20% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.53 / 10 · ranked #865,265 of all domains
42 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 125 ms |
| CLS | 0.15 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.9 MB · 84 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 1,275,213, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.reznicka.cz | 16 |
| reznicka.cz | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Apache HTTP Server Jul 2026
- detected Node.js Jul 2026
- detected Nuxt.js Jul 2026
- detected Open Graph Jul 2026
- detected Priority Hints Jul 2026
- detected PWA Jul 2026
- detected reCAPTCHA Jul 2026
- detected Swiper Jul 2026
- detected Tailwind CSS Jul 2026
- detected Ubuntu Jul 2026
- detected Vue.js Jul 2026