What powers 
vspdata.cz?
Last seen Oct 2026 · 16 technologies across 11 categories
Analytics
CDN
CMS
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
UI frameworks
Web frameworks
Web servers
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Nov 2026 * added to robots.txt
- Oct 2026 * removed from robots.txt
- Oct 2026 * added to robots.txt
- Oct 2026 * removed from robots.txt
- Sep 2026 * added to robots.txt
- Sep 2026 * removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 61% phone
- 39% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.76 / 10 · ranked #733,021 of all domains
24 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 1.7 MB · 61 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Websupport (37.9.175.211, IPv6)
- DNS: websupport.cz
- Email: vspdata.cz
- Email security: SPF (hard fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, wildcard, expires Dec 2026
- Common Crawl link graph: rank 11,022,086, 4 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.vspdata.cz | 12 |
| services.vspdata.cz | 6 |
Full technology history →
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