What powers vtc.cz?

Last seen Oct 2026 · 14 technologies across 11 categories

Analytics

Google Analytics
since Aug 2020

Cookie compliance

Cookie Script
since Sep 2024

JavaScript libraries

core-js v3.50.0
since Aug 2024
jQuery v3.7.1
since Aug 2018

Miscellaneous

Open Graph
since Aug 2026
Popper
since Aug 2026
PWA
since Aug 2022

Programming languages

PHP
since Aug 2018

Security

reCAPTCHA
since Oct 2018

Tag managers

Google Tag Manager
since Sep 2024

UI frameworks

Bootstrap v4.6.2
since Aug 2018

Web frameworks

Nette Framework v2.4
since Aug 2018

Web servers

Nginx
since Sep 2026

Webmail

Microsoft 365
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 Oct 2026.

  • robots.txt found
  • llms.txt not checked
  • ai.txt not checked

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Full breakdown

Audience

  • 55% desktop
  • 45% phone
  • Czechia
  • Slovakia

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

Open Page Rank

2.96 / 10 · ranked #1,661,747 of all domains

18 referring domains · OpenPageRank

Core Web Vitals

LCP0.6 s
INP75 ms
CLS0
TTFB300 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: Czech
  • Weight: 0.9 MB · 43 requests
  • Structured data: Microdata, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Oct 2026.

Infrastructure

  • Hosted on SUPERNETWORK _ (46.234.108.75, IPv6)
  • DNS: vas-hosting.com
  • Email: Microsoft 365
  • Email security: SPF (soft fail), DMARC quarantine, DNSSEC signed
  • SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
  • Common Crawl link graph: rank 910,471, 3 hosts

DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted

Subdomains

HostTechs
vtc.cz 14
www.vtc.cz 14

Full technology history →
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