What powers houdek.cz?

Last seen Sep 2026 · 16 technologies across 11 categories

Analytics

Google Analytics
since Aug 2018

Authentication

Facebook Login
since Sep 2021

Ecommerce

Shoptet
since Sep 2021

JavaScript libraries

core-js v3.50.0
since Aug 2022
jQuery v1.11.3
since Aug 2018
jQuery UI v@VERSION
since Aug 2018

Live chat

Facebook Chat Plugin
since May 2022

Miscellaneous

Gravatar
since Sep 2021
HTTP/3
since May 2026
Open Graph
since Sep 2022

Performance

Priority Hints
since Apr 2025

Programming languages

PHP
since Aug 2018

Tag managers

Google Tag Manager
since Aug 2018

UI frameworks

Bootstrap v3.3.5
since Sep 2021

Web servers

Nginx
since Jun 2019
OpenResty
since May 2026

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

  • 68% phone
  • 32% desktop
  • Czechia

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

Open Page Rank

2.69 / 10 · ranked #2,184,743 of all domains

19 referring domains · OpenPageRank

Core Web Vitals

LCP0.9 s
INP125 ms
CLS0
TTFB400 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: Czech
  • Weight: 1.2 MB · 47 requests
  • Structured data: Microdata, OpenGraph

Homepage as crawled by the HTTP Archive, Sep 2026.

Infrastructure

  • Hosted on VSHOSTING (185.64.219.37)
  • DNS: forpsi.cz
  • Email: houdek.cz
  • Email security: SPF (soft fail), no DMARC record
  • Common Crawl link graph: rank 17,264,554, 2 hosts
  • Verified with: Google

DNS records as swept Aug 2026. How the web is hosted

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