What powers 
joalis.cz?
Last seen Sep 2026 · 16 technologies across 7 categories
Analytics
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Tag managers
Google Tag Manager
since Feb 2021
Web servers
Nginx
since Feb 2020
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 83% phone
- 17% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.73 / 10 · ranked #748,532 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 125 ms |
| CLS | 0.35 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 2.2 MB · 67 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (80.79.31.214)
- DNS: websupport.cz
- Email: feldhost.cz
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 3,285,855, 3 hosts
- Verified with: Meta Business
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| joalis.cz | 16 |
| www.joalis.cz | 15 |
Full technology history →
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Recent changes
- dropped Apache HTTP Server Sep 2026
- dropped Debian Sep 2026
- detected Apache HTTP Server May 2026
- detected Debian May 2026
- detected Google Tag Manager Mar 2026
- dropped Google Tag Manager Jan 2026
- dropped Turbopack Jan 2026
- detected Turbopack Nov 2025