What powers probo-nb.cz?
Last seen Sep 2026 · 10 technologies across 9 categories
Analytics
JavaScript libraries
Load balancers
Miscellaneous
Operating systems
Security
Tag managers
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 66% phone
- 34% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.53 / 10 · ranked #2,440,293 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 0.9 MB · 39 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- PROBO-NB s.r.o.
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on VSHOSTING (46.243.48.60)
- DNS: web4u.cz
- Email: MailChannels
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 17,841,591, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Open Graph Jul 2026