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

Adobe Flash (by Adobe Systems, formerly Shockwave Flash and Macromedia Flash and now part of Adobe Animate CC) is a multimedia platform for adding animation and interactivity to web pages.

Moment.js is a library to manipulate dates in JavaScript.

Handlebars is a JavaScript template engine largely compatible with Mustache.

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 The YUI library is no longer actively maintained.

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

Ubuntu is a Linux distribution.

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

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

Amazon CloudFront is a content delivery web service by Amazon.

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

Gmail is the email service provided by Google.

Starfield Technologies is an SSL certificate authority owned by Go Daddy.

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.

Snowplow is an open-source web analytics platform.

Quantcast provides visitor statistics of web sites.

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

AdRoll is an advertising network for retargeting and other advertising formats.

Xandr is an advertising network owned by Microsoft, formerly by AT&T. This includes the former AppNexus brand.

OpenX (previously called phpAds, phpAdsNew, MaxMediaManager and Openads) is an open source ad management system and ad marketplace.

Equativ (formerly Smart AdServer) is an advertising networks for ads served on the web, mobile and tablets.

Yahoo Advertising (formerly Verizon Media Advertising, Adtech, ONE by AOL, Yahoo Ad Tech and Oath Advertising) offers a range of advertising platforms.

Index Exchange (formerly Casale Media) is an advertising network.

PulsePoint (formerly Adsdaq and ContextWeb) is an advertising exchange service.

Adobe DTM (Dynamic Tag Management) is a tag management system by Adobe, part of Abode Analytics. This includes Satellite, previously owned by Search Discovery, and Adobe TagManager.

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.

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

Persistent cookies with an expiration time between 1 and 10 years.

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.

Gzip (GNU zip) is a file compression algorithm.

A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.

The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address.

HTTP/2 is the second major version of the HTTP network protocol.

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

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.

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 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.

Microdata is a specification to integrate metadata within existing content on web pages.

HTML5 is the fifth revision of the HTML standard.

Strict version of HTML.

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

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

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.

Commercial entities