What powers zuby.cz?
Last seen Sep 2026 · 18 technologies across 12 categories
Analytics
Google Analytics
since Dec 2021
Hotjar
since Dec 2021
CDN
Ecommerce
Cart Functionality
since Dec 2021
Font scripts
Google Font API
since Dec 2021
JavaScript libraries
Miscellaneous
Operating systems
Debian
since Jan 2019
Programming languages
PHP
since Dec 2021
Security
HSTS
since Sep 2022
UI frameworks
Web frameworks
Nette Framework
since Dec 2021
Web servers
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 85% phone
- 15% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.55 / 10 · ranked #2,411,168 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0.15 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.8 MB · 66 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Linode (Akamai) (192.46.239.72)
- DNS: forpsi.cz
- Email: smartware.cz
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 1,417,380, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Debian Jun 2026