Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

Varnish is a reverse caching proxy.

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

Apache is a free and open-source cross-platform web server software.

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.

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.

Sites using the WordPress Block Editor, also known as Gutenberg.

Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.

YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.

WordPress Popular Posts is a plugin for the WordPress content management system that allows users to display a widget or shortcode featuring a list of the most popular posts on their website based on criteria such as pageviews or comments.

MySQL is an open-source relational database management system.

Contact Form 7 is an WordPress plugin which can manage multiple contact forms. The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering.

PHP is a general-purpose scripting language used for web development.