What powers mr43.cz?
Last seen Sep 2026 · 22 technologies across 15 categories
Analytics
Databases
Ecommerce
Font scripts
JavaScript libraries
Load balancers
Miscellaneous
Operating systems
Programming languages
Security
Tag managers
Web frameworks
Web servers
Webmail
Widgets
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
- 69% phone
- 31% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.25 / 10 · ranked #2,990,034 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 1.9 MB · 35 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- MR43 s.r.o.
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on VSHOSTING (46.243.48.60)
- DNS: regzone.cz
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 15,652,246, 4 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| mr43.cz | 13 |
| shop.mr43.cz | 10 |
Full technology history →
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Recent changes
- detected Open Graph Jul 2026