Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly.
Donorbox is a US-based technology company. It offers an online fundraising software that allows individuals and nonprofit organisations to receive donations over the Internet.
ExactMetrics (formerly Google Analytics Dashboard for WP) plugin helps you properly setup all the powerful Google Analytics tracking features without writing any code or hiring a developer.
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.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
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.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
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 Engine is a website hosting provider.
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.