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PHP is a popular scripting language for creating web pages.

JavaScript is a lightweight, object-oriented, cross-platform scripting language, mainly 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.

HTML5 is the fifth revision of the HTML standard.

ISO-8859-1 (informally also called Latin-1) is an 8-bit character set for Western European languages.

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.

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

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

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 month and 1 year.

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.

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.

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

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

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 Cards enable automatic attachment of photos, videos and media elements to Tweets.

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

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

DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.

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

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

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google.

Facebook Pixel is an analytics tool to track actions on websites.

Quantcast provides visitor statistics of web sites.

Full Circle Studies collects information about general website visitation patterns as part of the ComScore market research.

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

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

Cogeco Peer 1 (formerly Peer 1 Hosting) provides Internet hosting services that include managed hosting, dedicated servers, collocation and cloud computing, owned by Cogeco. This includes its subsidiary ServerBeach and NetBenefit.

CloudFlare provides a content delivery network.

Amazon CloudFront is a content delivery web service by Amazon.

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