What powers zpa.cz?
Last seen Aug 2026 · 23 technologies across 14 categories
Analytics
Google Analytics
since Jan 2019
CMS
Databases
MySQL
since Mar 2022
Ecommerce
Font scripts
Font Awesome
since Mar 2022
Google Font API
since Mar 2022
JavaScript graphics
particles.js
since Mar 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Performance
Priority Hints
since Aug 2023
Programming languages
Tag managers
Google Tag Manager
since May 2025
Web servers
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 55% desktop
- 45% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.66 / 10 · ranked #781,911 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 1.1 MB · 88 requests
- WordPress theme: woodmart (child: woodmart-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- ZPA Smart Energy
- Founded: 1958
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on WEB4U (81.91.86.14, IPv6)
- DNS: web4u.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 14,401,261, 6 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026. How the web is hosted