What powers 
kahi.cz?
Last seen Sep 2026 · 11 technologies across 10 categories
Analytics
Google Analytics
since Jan 2019
CMS
Databases
MySQL
since Mar 2025
Font scripts
Twitter Emoji (Twemoji)
since Mar 2025
JavaScript libraries
Programming languages
PHP
since Mar 2025
Security
HSTS
since Jan 2025
Web servers
Apache HTTP Server
since Jan 2019
Widgets
AddThis
since Dec 2020
WordPress themes
AndersNoren Hitchcock
since Mar 2025
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.20 / 10 · ranked #453,908 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 275 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.2 MB · 6 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CASABLANCA-AS Internet & Collocation Provider (217.11.249.138, IPv6)
- DNS: blueboard.cz
- Email: blueboard.cz
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 470,884, 15 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kahi.cz | 10 |
| character-map.kahi.cz | 5 |
| fc.kahi.cz | 3 |
| svatek.kahi.cz | 3 |