What powers 
deza.cz?
Last seen Sep 2026 · 10 technologies across 8 categories
Caching
Varnish
since Sep 2025
CMS
Hosting
Drupal Multisite
since Sep 2025
JavaScript libraries
Miscellaneous
Babel
since Nov 2023
Programming languages
PHP
since Sep 2021
Security
HSTS
since Nov 2023
Video players
YouTube
since Nov 2023
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 70% phone
- 30% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.59 / 10 · ranked #821,243 of all domains
40 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- CDN: Google
- Weight: 14.1 MB · 45 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- DEZA
- Founded: 1960
- Sector: chemical industry
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on Google Cloud (35.187.26.183)
- DNS: websupport.cz
- Email: agrofert.cz
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: DigiCert, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,360,488
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted