Site Info - Opensource.org

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

Discourse is an open source discussion platform written in Ruby on Rails.

XWiki is an open source content management system written in Java.

PHP is a scripting language for creating websites.

Ruby is a general-purpose object-oriented language originally developed by Yukihiro "Matz" Matsumoto in Japan.

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.

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

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

Underscore is a JavaScript library that provides functional programming support.

RequireJS is a JavaScript file and module loader.

Prototype is a JavaScript framework originally developed by Sam Stephenson.

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

Cloudflare Server is a web server developed by Cloudflare.

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

Discourse offers managed hosting of its open source discussion platform.

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

Discourse offers managed hosting of its open source discussion platform.

Cloudflare provides a content delivery network.

Cloudflare provides DNS servers and other web services.

Gmail is the email service provided by Google.

Discourse offers managed hosting of its open source discussion platform.

GlobalSign is an IT security service provider, also operating as SSL certificate authority.

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

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.

Plausible is a lightweight, open source website analytics tool.

Matomo (formerly Piwik) is an open source web analytics program.

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.

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/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 of up to 1 day.

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.

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.

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

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.

Organizations