What powers primaria.cz?
Last seen Oct 2026 · 13 technologies across 10 categories
Analytics
Tinybird
since Aug 2026
CDN
Cloudflare
since Aug 2026
Comment systems
Font scripts
Google Font API
since Aug 2026
JavaScript frameworks
TanStack Start
since Aug 2026
Maps
Miscellaneous
Open Graph
since Aug 2026
Security
Cloudflare Bot Management
since Aug 2026
HSTS
since Aug 2026
UI frameworks
Webmail
Microsoft 365
since Aug 2026
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 82% phone
- 18% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.97 / 10 · ranked #3,675,200 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 1.0 MB · 52 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (185.158.133.1)
- DNS: forpsi.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- Common Crawl link graph: rank 7,256,094, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Cart Functionality Oct 2026