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Drupal is an open source content management system written in PHP, originally developed by Dries Buytaert.

WordPress is an open source blog publishing and content management system, based on PHP and MySQL.

WooCommerce is an open source e-commerce platform based on WordPress.

Moodle is a web-based open source course management system based on PHP.

PHP is a scripting language for creating websites.

Java is a general-purpose language originally developed by Sun Microsystems.

JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages.

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

Bootstrap is an open source HTML, CSS, and JavaScript framework.

RequireJS is a JavaScript file and module loader.

The Yahoo! User Interface (YUI) Library is a JavaScript library developed by Yahoo. The YUI library is no longer actively maintained.

MathJax is a JavaScript engine for displaying mathematical formulas.

Bootstrap is an open source HTML, CSS, and JavaScript framework.

The Apache HTTP Server is an open source web server by the Apache Software Foundation.

Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.

Jetty is an open source Java-based HTTP server and servlet container by Mort Bay Consulting.

Red Hat Enterprise Linux (RHEL) is a Linux distribution.

Google provides various services to run on its servers.

WP.one is a WordPress hosting provider owned by Group.one.

Inmics-Nebula is a Finnish IT service and web hosting provider owned by Telia Company.

Google provides various services to run on its servers.

Cygate is a Swedish IT infrastructure provider owned by Telia Company.

Mailgun is an email service provider.

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group.

Hotjar is a website analytics and feedback application.

Siteimprove is a web governance software, that includes a web analytics module.

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google. This includes the Ads conversion tracking and the Floodlight services.

Meta Pixel (formerly Facebook Pixel) is an analytics tool to track actions on websites.

The LinkedIn Insight Tag helps to optimize LinkedIn campaigns.

The Google Advertising network consists of AdSense, DoubleClick and other services.

The Google Tag Manager is a Google service to support webmasters to manage tags on their websites.

Facebook Social Plugins provide a way for Facebook users to share web pages with their friends.

A Twitter/X Button allows a Twitter user to post a tweet from the visited site.

LinkedIn Share Buttons enable visitors to to share website content with their LinkedIn network.

The Pinterest Pin-It button allows website visitors to pin images onto Pinterest.

AddToAny is a social bookmarking and sharing service.

External Cascading Style Sheets define style rules in a separate CSS file.

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

Session cookies are temporary cookies, which are deleted when the user closes the browser.

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

Secure cookies are used only via an encrypted connections, which may increase security.

Gzip (GNU zip) is a file compression algorithm.

HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Persistent cookies with an expiration time between 1 month and 1 year.

Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.

Non-secure cookies may be used via an unencrypted connections, which may be a security threat.

The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph.

Twitter/X Cards enable automatic attachment of photos, videos and media elements to tweets.

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.

HTML5 is the fifth revision of the HTML standard.

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

Scalable Vector Graphics (SVG) is an XML-based vector image format.

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

WebP is an image format that provides lossless and lossy compression, developed by Google.

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