cdnjs is a free distributed JS library delivery service.
Contact Form 7 is an WordPress plugin which can manage multiple contact forms. The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering.
Flickity is a JavaScript slider library, built by David DeSandro of Metafizzy fame.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Google Optimize allows you to test variants of web pages and see how they perform.
Google PageSpeed is a family of tools designed to help websites performance optimisations.
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.
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.
MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers, using MathML, LaTeX and ASCIIMathML markup.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Pinterest is an image sharing and social media service designed to enable saving and discovery of information.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Prism is an extensible syntax highlighter.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Unpkg is a content delivery network for everything on npm.
ValueCommerce is a pay-per-performance advertising affiliate marketing network.
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.