What powers sps-caslav.cz?

Last seen Sep 2026 · 24 technologies across 19 categories

Analytics

Google Analytics v4
since May 2019

CDN

jsDelivr
since Oct 2021

CMS

WordPress v5.7.2
since Oct 2021

Databases

MySQL
since Oct 2021

Font scripts

Google Font API
since Oct 2021

JavaScript libraries

jQuery v3.5.1
since Oct 2021
jQuery Migrate v3.3.2
since Oct 2021

Miscellaneous

Open Graph
since Sep 2022
RSS
since Dec 2022

Page builders

WordPress Block Editor
since Jul 2024

Performance

LazySizes
since Feb 2022

Programming languages

PHP
since Oct 2021

Retargeting

Google Remarketing Tag
since Oct 2021

Security

Tag managers

Google Tag Manager
since Oct 2021

Video players

YouTube
since Oct 2021

Web servers

Apache HTTP Server
since Jan 2019

Webmail

Google Workspace
since Aug 2022

Widgets

Wheelio
since Oct 2021

WordPress plugins

Autoptimize
since Mar 2023
Blocksy Companion
since Apr 2023
EWWW Image Optimizer
since Feb 2022
RankMath SEO
since Nov 2022

WordPress themes

Blocksy
since Feb 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 Sep 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

  • 80% phone
  • 20% desktop
  • Czechia

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

Open Page Rank

2.87 / 10 · ranked #1,840,263 of all domains

22 referring domains · OpenPageRank

Core Web Vitals

LCP1 s
INP125 ms
CLS0
TTFB300 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: Czech
  • Weight: 2.3 MB · 40 requests
  • Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Sep 2026.

Organisation

  • Vyšší odborná škola, Střední průmyslová škola a Obchodní akademie Čáslav

From the homepage's own structured data (Sep 2026).

Infrastructure

  • Hosted on Hetzner (78.46.166.216)
  • DNS: websupport.cz
  • Email: Google Workspace
  • Email security: no SPF record, no DMARC record, DNSSEC signed
  • SSL: DigiCert, RSA 2048, expires Nov 2026
  • Common Crawl link graph: rank 12,897,753, 2 hosts

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

Subdomains

HostTechs
sps-caslav.cz 20
www.sps-caslav.cz 13

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