What powers 
vaclavak48.cz?
Last seen Aug 2026 · 12 technologies across 10 categories
Analytics
Google Analytics
since Mar 2021
CDN
Google Hosted Libraries
since Feb 2022
CMS
MODX
since Jul 2019
Font scripts
Google Font API
since Jul 2019
JavaScript libraries
Live chat
WhatsApp Business Chat
since Jun 2022
Maps
Google Maps
since Jul 2019
Miscellaneous
PWA
since Aug 2022
Programming languages
PHP
since Jul 2019
Web servers
Apache HTTP Server
since Jul 2019
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 Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.79 / 10 · ranked #267,758 of all domains
122 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 2.6 MB · 83 requests
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on INTERNET-CZ Ktis 2, 384 03 Ktis (81.2.195.254)
- DNS: forpsi.cz
- Email: forpsi.com
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Actalis, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 206,210, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted