Apache is a free and open-source cross-platform web server software.
Syntax Highlighter supporting multiple languages, themes, fonts, highlighting from a URL, local file or post text.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Open Graph is a protocol that is used to integrate any web page into the social graph.
ShareThis provides free engagement and growth tools (e.g., share buttons, follow buttons, and reaction buttons) for site owners.
TablePress is a free and open source plugin for the WordPress publishing platform. It enables you to create and manage tables on your website, without any coding knowledge.
Twenty Fifteen is the default WordPress theme for 2015.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
Yoast SEO is a search engine optimisation plugin for WordPress and other platforms.