What powers 
redx.cz?
Last seen Oct 2026 · 18 technologies across 12 categories
Analytics
Authentication
Font scripts
JavaScript libraries
Live chat
Maps
Miscellaneous
Security
Tag managers
Video players
Web servers
Webmail
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 found
- ai.txt not found
- Oct 2026 llms.txt appeared
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 66% phone
- 34% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.56 / 10 · ranked #836,946 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 8.4 MB · 265 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (81.31.37.22, IPv6)
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 13,592,392
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Google Call Conversion Tracking Oct 2026
- detected Facebook Pixel Aug 2026
- detected Microsoft Clarity Jun 2026
- detected Snowplow Analytics May 2026
- detected Smartsupp Apr 2026