What powers zpa.cz?

Last seen Aug 2026 · 23 technologies across 14 categories

Analytics

Google Analytics
since Jan 2019

CMS

WordPress v7.0.3
since Mar 2022

Databases

MySQL
since Mar 2022

Ecommerce

WooCommerce v11.0.1
since Mar 2022

Font scripts

Font Awesome
since Mar 2022
Google Font API
since Mar 2022

JavaScript graphics

particles.js
since Mar 2022

JavaScript libraries

jQuery
since Jan 2019
jQuery Migrate v3.4.1
since Mar 2022
Swiper
since Feb 2025

Miscellaneous

Open Graph
since Sep 2022
RSS
since Dec 2022

Performance

Priority Hints
since Aug 2023

Programming languages

PHP v8.4.23
since Jan 2019

Tag managers

Google Tag Manager
since May 2025

Web servers

Nginx
since Mar 2022
OpenResty
since Mar 2022

Webmail

Microsoft 365
since Aug 2022

WordPress plugins

Complianz v7.5.2
since Mar 2022
Elementor v4.2.2
since Mar 2022
Site Kit v1.185.0
since May 2025
WP Rocket
since Mar 2022
Yoast SEO v28.2
since Mar 2022

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

See who blocks each AI crawler across the web

AI Crawlers

Policy unknown

Full breakdown

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

LCP3.4 s
INP75 ms
CLS0
TTFB2800 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

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