Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Twenty Twelve is the default WordPress theme for 2012.
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.
WP Rocket is a caching and performance optimisation plugin to improve the loading speed of WordPress websites.
Yoast SEO is a search engine optimisation plugin for WordPress and other platforms.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.