What powers flexithrone.cz?
Last seen Oct 2026 · 19 technologies across 12 categories
Analytics
Comment systems
Font scripts
JavaScript libraries
Live chat
Maps
Miscellaneous
Operating systems
Performance
Programming languages
Security
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
- 78% phone
- 22% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.68 / 10 · ranked #5,124,624 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 2.0 MB · 25 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on WEB4U (81.91.86.14)
- DNS: web4u.cz
- Email: MailChannels
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 30,587,249, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| eshop.flexithrone.cz | 16 |
| www.flexithrone.cz | 6 |
Full technology history →
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Recent changes
- detected Priority Hints Oct 2026
- detected Font Awesome May 2026
- detected Leaflet May 2026
- detected Livefyre May 2026