Hotjar Usage Statistics · Download List of All Websites using Hotjar
A heatmap, survey, feedback and funnel application.
Audience Measurement · Conversion Optimization · Feedback Forms and Surveys
Google Analytics Usage Statistics · Download List of All Websites using Google Analytics
Google Analytics offers a host of compelling features and benefits for everyone from senior executives and advertising and marketing professionals to site owners and content developers.
Application Performance · Audience Measurement · Visitor Count Tracking
Google Analytics Classic Usage Statistics · Download List of All Websites using Google Analytics Classic
Classic Google Analytics - sites that are using non-universal analytics code.
Facebook Conversion Tracking Usage Statistics · Download List of All Websites using Facebook Conversion Tracking
Conversion tracking functionality from Facebook, allows a user to track advertisement clicks.
Conversion Tracking · Conversion Optimization
Facebook Pixel Usage Statistics · Download List of All Websites using Facebook Pixel
Facebook Pixel is Facebooks conversion tracking system for ads on Facebook to websites.
Google Font API Usage Statistics · Download List of All Websites using Google Font API
The Google Font API helps you add web fonts to any web page.
Fonts
COVID-19 Usage Statistics · Download List of All Websites using COVID-19
This website mentions COVID-19 / Novel Coronavirus.
Google Tag Manager Usage Statistics · Download List of All Websites using Google Tag Manager
Tag management that lets you add and update website tags without changes to underlying website code.
Tag Management
CrUX Dataset Usage Statistics · Download List of All Websites using CrUX Dataset
CrUX is a data collection system that gathers information about how real users interact with websites. This website is included in the user experiences data gathered from Google Chrome and thus considered sufficiently popular on the Internet.
CrUX Top 500k Usage Statistics · Download List of All Websites using CrUX Top 500k
Relative measure of site popularity within the CrUX dataset, measured by the total number of navigations on the origin. This site is in the top 500k.
CrUX Top 1m Usage Statistics · Download List of All Websites using CrUX Top 1m
Relative measure of site popularity within the CrUX dataset, measured by the total number of navigations on the origin. This site is in the top 1 million.
Cloudflare Radar Usage Statistics · Download List of All Websites using Cloudflare Radar
The website appears on the Cloudflare Radar Top 1m sites list
Cloudflare Radar Top 200k Usage Statistics · Download List of All Websites using Cloudflare Radar Top 200k
The website appears in the Cloudflare Radar Top 200,000.
Common Crawl Usage Statistics · Download List of All Websites using Common Crawl
This website was found in the Common Crawl dataset. Data from this site was probably used to train AI LLMs.
CommonCrawl Top 5m Usage Statistics · Download List of All Websites using CommonCrawl Top 5m
This website appears in the Common Crawl Page Rank top 5m websites.
Czech HREF LANG Usage Statistics · Download List of All Websites using Czech HREF LANG
This webpage has alternate versions available in Czech via the use of the hreflang tag.
English HREF LANG Usage Statistics · Download List of All Websites using English HREF LANG
This webpage has alternate versions available in English via the use of the hreflang tag.
Czech Usage Statistics · Download List of All Websites using Czech
Website content is written in Czech. Based on HTML langauge attributes on the website
Cart Functionality Usage Statistics · Download List of All Websites using Cart Functionality
The site has a link to a shopping cart which is not categorized under any of the cart technologies we track (custom implementation or not tracked yet).
Non Platform
University or College Usage Statistics · Download List of All Websites using University or College
A known college and/or university.
Zope Usage Statistics · Download List of All Websites using Zope
Zope is an open source application server for building content management systems, intranets, portals, and custom applications.
Python Usage Statistics · Download List of All Websites using Python
Python is a dynamic object-oriented programming language that can be used for many kinds of software development. It offers strong support for integration with other languages and tools, comes with extensive standard libraries, and can be learned in a few days.
Facebook Domain Verification Usage Statistics · Download List of All Websites using Facebook Domain Verification
Domain Verification provides a way for you to claim ownership of your domain in Facebook Business Manager.
PHP Usage Statistics · Download List of All Websites using PHP
PHP is a widely used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
OSS CDN Usage Statistics · Download List of All Websites using OSS CDN
Open Source Software CDN from MaxCDN.
GStatic Google Static Content Usage Statistics · Download List of All Websites using GStatic Google Static Content
Google has off-loaded static content (Javascript/Images/CSS) to a different domain name in an effort to reduce bandwidth usage and increase network performance for the end user.
jsDelivr Usage Statistics · Download List of All Websites using jsDelivr
A free CDN where Javascript developers can host their files. Encompasses MaxCDN, and BootstrapCDN.
CDN JS Usage Statistics · Download List of All Websites using CDN JS
CloudFlare's CDN with popular javascript frameworks available.
Cloudflare JS Usage Statistics · Download List of All Websites using Cloudflare JS
Loads content from Cloudflare CDN.
Viewport Meta Usage Statistics · Download List of All Websites using Viewport Meta
This page uses the viewport meta tag which means the content may be optimized for mobile content.
IPhone / Mobile Compatible Usage Statistics · Download List of All Websites using IPhone / Mobile Compatible
The website contains code that allows the page to support IPhone / Mobile Content.
Apple Mobile Web Clips Icon Usage Statistics · Download List of All Websites using Apple Mobile Web Clips Icon
This page contains an icon for iPhone, iPad and iTouch devices.
Mobile Non Scaleable Content Usage Statistics · Download List of All Websites using Mobile Non Scaleable Content
This content is formatted for mobile devices, it does not allow the content to be scaled.
Euro Usage Statistics · Download List of All Websites using Euro
The website uses the € symbol on its website - meaning it may accept payment in Euros.
Currency
Plone Usage Statistics · Download List of All Websites using Plone
Leading open source CMS for Content Management, Document Management and Knowledge Management.
Community CMS · Open Source
Joomla! Usage Statistics · Download List of All Websites using Joomla!
Joomla! is a Content Management System and Web Application Framework.
Open Source
Yahoo User Interface Usage Statistics · Download List of All Websites using Yahoo User Interface
The Yahoo! User Interface (YUI) Library is a set of utilities and controls, written in JavaScript, for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX.
JavaScript Library
jQuery Usage Statistics · Download List of All Websites using jQuery
JQuery is a fast, concise, JavaScript Library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. jQuery is designed to change the way that you write JavaScript.
jQuery UI Usage Statistics · Download List of All Websites using jQuery UI
jQuery UI provides abstractions for low-level interaction and animation, advanced effects and high-level, themeable widgets, built on top of the jQuery JavaScript Library, that you can use to build highly interactive web applications.
jQuery Highlight Usage Statistics · Download List of All Websites using jQuery Highlight
JQuery Highlight provides highlighting of certain text.
jQuery Cookie Usage Statistics · Download List of All Websites using jQuery Cookie
A simple, lightweight jQuery plugin for reading, writing and deleting cookies.
jQuery 1.8.1 Usage Statistics · Download List of All Websites using jQuery 1.8.1
jQuery version 1.8.1
jQuery Cycle Usage Statistics · Download List of All Websites using jQuery Cycle
A slideshow plugin for JQuery that supports many different types of transition effects.
jQuery Migrate Usage Statistics · Download List of All Websites using jQuery Migrate
APIs and features removed from jQuery core
Fancybox Usage Statistics · Download List of All Websites using Fancybox
FancyBox is a tool for displaying images, html content and multi-media in a Mac-style "lightbox" that floats overtop of web page.
Facebook for Websites Usage Statistics · Download List of All Websites using Facebook for Websites
Allows a user to make a website more sociable and connected with integrations from the hugely popular Facebook website.
Facebook SDK Usage Statistics · Download List of All Websites using Facebook SDK
JavaScript SDK enables you to access all of the features of the Graph API via JavaScript, and it provides a rich set of client-side functionality for authentication and sharing. It differs from Facebook Connect.
Respond Usage Statistics · Download List of All Websites using Respond
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
Compatibility
html5shiv Usage Statistics · Download List of All Websites using html5shiv
HTML5 IE enabling script shim.
Modernizr Usage Statistics · Download List of All Websites using Modernizr
Modernizr allows you to target specific browser functionality in your stylesheet.
imagesLoaded Usage Statistics · Download List of All Websites using imagesLoaded
jQuery plugin for seeing if the images are loaded.
DataTables Usage Statistics · Download List of All Websites using DataTables
jQuery plugin to extend tables.
jQuery Plugin
Vue Usage Statistics · Download List of All Websites using Vue
vue.js a JavaScript MVVM framework.
UIkit Usage Statistics · Download List of All Websites using UIkit
A lightweight and modular front-end framework for developing web interfaces.
Framework
core-js Usage Statistics · Download List of All Websites using core-js
Modular standard library for JavaScript.
Intersection Observer Usage Statistics · Download List of All Websites using Intersection Observer
API that can be used to understand the visibility and position of DOM elements relative to a containing element or to the top-level viewport.
Facebook Custom Audiences Usage Statistics · Download List of All Websites using Facebook Custom Audiences
Custom Audiences from your website makes it possible to reach people who visit your website and deliver the right message to them on Facebook.
Retargeting / Remarketing
Twitter Usage Statistics · Download List of All Websites using Twitter
The website mentions twitter.com in some form.
Facebook Usage Statistics · Download List of All Websites using Facebook
The website mentions facebook.com in some form.
Instagram Usage Statistics · Download List of All Websites using Instagram
The website mentions Instagram in some form.
GitHub Usage Statistics · Download List of All Websites using GitHub
The website mentions github.com in some form.
YouTube Link Usage Statistics · Download List of All Websites using YouTube Link
This website mentions YouTube.com on it in some form or another.
Many Subdomains Usage Statistics · Download List of All Websites using Many Subdomains
This domain has at least 1000 subdomains that resolve to an IP address.
Australian hosting
CESNET Usage Statistics · Download List of All Websites using CESNET
Backbone internet provider from the Czech Republic
Czech hosting
Czech Server Location Usage Statistics · Download List of All Websites using Czech Server Location
The web server is located in Czech Republic.
Server Location
LetsEncrypt Usage Statistics · Download List of All Websites using LetsEncrypt
Let’s Encrypt is a free open Certificate Authority.
Root Authority
SSL by Default Usage Statistics · Download List of All Websites using SSL by Default
The website redirects traffic to an HTTPS/SSL version by default.
Microsoft Exchange Online Usage Statistics · Download List of All Websites using Microsoft Exchange Online
A rich hosted Exchange environment for every user without having to manage a server.
Business Email Hosting
SPF Usage Statistics · Download List of All Websites using SPF
The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.
Office 365 Mail Usage Statistics · Download List of All Websites using Office 365 Mail
Email sent from this domain has records showing Office 365 usage.
DMARC Usage Statistics · Download List of All Websites using DMARC
A technical specification created by a group of organizations that want to help reduce the potential for email-based abuse
DMARC
DMARC Quarantine Usage Statistics · Download List of All Websites using DMARC Quarantine
The domain has a DMARC policy of 'Quarantine'. This tells the receiving mail server that all emails that do not have your domain name in the “From” field (or any other set criteria) should be quarantined by default.
Apple iCloud Mail Usage Statistics · Download List of All Websites using Apple iCloud Mail
Webmail service provided by Apple.
DNSSEC Usage Statistics · Download List of All Websites using DNSSEC
DNSSEC strengthens DNS authentication by using digital signatures based on public key cryptography.
Apache Usage Statistics · Download List of All Websites using Apache
Apache has been the most popular web server on the Internet since April 1996.
ZServer Usage Statistics · Download List of All Websites using ZServer
Technology to run Zope based applications
Varnish Usage Statistics · Download List of All Websites using Varnish
Varnish is a web accelerator / reverse proxy caching server.
Varnish Server
nginx Usage Statistics · Download List of All Websites using nginx
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Ubuntu Usage Statistics · Download List of All Websites using Ubuntu
Ubuntu is a free, Debian derived Linux-based operating system, available with both community and professional support.
OpenSSL Usage Statistics · Download List of All Websites using OpenSSL
The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.
RSS Usage Statistics · Download List of All Websites using RSS
A family of web feed formats used to publish frequently updated content such as blog entries, news headlines or podcasts.
Dublin Core Usage Statistics · Download List of All Websites using Dublin Core
The website contains dublin core meta data extensions.
Googlebot Disallow Usage Statistics · Download List of All Websites using Googlebot Disallow
The website has disallow rules for Google Search Bot.
Content Delivery Network Usage Statistics · Download List of All Websites using Content Delivery Network
This page contains links that give the impression that some of the site contents are stored on a content delivery network.
Google Webmaster Usage Statistics · Download List of All Websites using Google Webmaster
Webmaster tools provide you with a free and easy way to make your site more Google-friendly.
Last technology detected on 8th March 2025. We know of 85 technologies on this page and 22 technologies removed from jcu.cz since 15th October 2004. Link to this page.
jcu.cz is ranked 158,309th in our top sites list. View BuiltWith Top Site Rank.
Add BuiltWith to for free! Get lookups easily and quickly.
Get a notification when jcu.cz adds new technologies.
Get jcu.cz profile as an XML, JSON, CSV or XLSX via the Domain API.
Can't find the technology you are looking for? Send us a suggestion, we will try and add it to our database.