What powers vecr.cz?

Last seen Oct 2026 · 20 technologies across 12 categories

Analytics

Matomo Analytics
since Jul 2022

Comment systems

Livefyre v1.9.4
since Sep 2021

JavaScript frameworks

JSS
since Nov 2022
React
since Aug 2022

JavaScript libraries

Clipboard.js
since Aug 2023
core-js v2.5.1
since Apr 2022
jQuery v3.1.1
since Jan 2019
LazySizes
since Jul 2022
Lodash v4.17.4
since Aug 2022
Swiper
since Sep 2022

Maps

Leaflet v1.9.4
since Sep 2021

Miscellaneous

Babel
since Aug 2022
Open Graph
since Sep 2022
PWA
since Aug 2022

PaaS

Amazon Web Services
since Aug 2022

Programming languages

Java
since May 2025

Security

HSTS
since Sep 2022

Tag managers

Google Tag Manager
since Sep 2019

Web servers

Apache HTTP Server v2.4
since Jul 2022

Webmail

Google Workspace
since Aug 2022

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 Nov 2026.

  • robots.txt found
  • llms.txt not found
  • ai.txt not found
  • Oct 2026 robots.txt appeared
  • Oct 2026 * added to robots.txt
  • Oct 2026 * removed from robots.txt
  • Oct 2026 robots.txt removed
  • Sep 2026 robots.txt appeared
  • Sep 2026 * added to robots.txt

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Full breakdown

Audience

  • 51% desktop
  • 49% phone
  • Czechia

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

4.12 / 10 · ranked #496,065 of all domains

61 referring domains · OpenPageRank

Core Web Vitals

LCP0.8 s
INP75 ms
CLS0
TTFB200 ms

Real user p75, Chrome UX Report, Oct 2026.

Page

  • Language: Czech
  • Weight: 0.7 MB · 20 requests
  • Structured data: OpenGraph

Homepage as crawled by the HTTP Archive, Oct 2026.

Organisation

  • Veolia Energie ČR
  • Founded: 1992
  • Sector: energy sector
  • Country: Czech Republic

From Wikidata (CC0).

Infrastructure

DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted

Subdomains

HostTechs
portal.vecr.cz 11
www.vecr.cz 9
udalosti.vecr.cz 8

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