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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.

PHP is a scripting language for creating websites.

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.

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the visitors browser.

MooTools (My Object-Oriented Tools) is a modular, object-oriented JavaScript framework, originally developed by Valerio Proietti.

Underscore is a JavaScript library that provides functional programming support.

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

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

The LiteSpeed Web Server is a lightweight web server by LiteSpeed Technologies.

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

Unix is a range of operating systems originally developed at Bell Labs. This includes Unix and Unix-like systems, such as Linux.

KeurigOnline is a Dutch web hosting provider.

CJ2 is a Dutch web hosting provider.

KeurigOnline is a Dutch web hosting provider.

Amazon is a US-based e-commerce and cloud computing provider.

NameWeb offers domain name registration services for resellers.

KeurigOnline is a Dutch web hosting provider.

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

Google Hosted Libraries (formerly called Google Libraries API) is a content distribution network for the most popular, open-source JavaScript libraries, provided by Google.

jsDelivr is a service for hosting JavaScript files.

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.

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.

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.

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

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

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

Brotli is a lossless compression algorithm developed by Google.

A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.

HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol.

QUIC (Quick UDP Internet Connections) is an experimental network protocol, originally designed by Google and submitted to IETF standardization.

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/.

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

Gzip (GNU zip) is a file compression algorithm.

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.

TIFF (Tagged Image File Format) is a file format for storing images, either uncompressed or with a lossless compression, developed by Adobe.

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