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

PHP is a scripting language for creating websites.

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

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

The Apache Traffic Server is a caching proxy server derived from the Yahoo Traffic Server.

Automattic is hosting WordPress-based websites. This includes it Pressable and Newspack brand.

Yahoo operates several web portals and related services world-wide, owned by Verizon.

Automattic is hosting WordPress-based websites. This includes it Pressable and Newspack brand.

Yahoo operates several web portals and related services world-wide, owned by Verizon.

Verizon Media (formerly Oath) provides media and online services, owned by Verizon.

Cloudflare provides DNS servers and other web services.

Akamai provides a content delivery network.

Proofpoint provides email protection and other IT security services.

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

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

unpkg is a JavaScript content delivery network for libraries that use the npm package manager.

WordPress Jetpack Stats is a visitor tracking plugin for the WordPress publishing platform.

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.

HubSpot Marketing Analytics is a web analytics tool by HubSpot.

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

Parse.ly is a web analytics service for large publishing sites.

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

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

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

PubMatic is a marketing automation software provider.

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

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.

Reddit Buttons allow web pages to be submitted to and discussed on Reddit.

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.

Brotli is a lossless compression algorithm developed by Google.

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 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/.

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

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.

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.

Gzip (GNU zip) is a file compression algorithm.

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

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.

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

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

AVIF (AV1 Image File Format) is an image file format specification for storing images or image sequences compressed with AV1 in the HEIF file format.

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