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 S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.

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

Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.

Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes.

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

Bluehost is a large web host known for its WordPress expertise, variety of “one-stop-shop” services, and bargain prices.

Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots.

Jetpack is a popular WordPress plugin created by Automattic, the people behind WordPress.com.

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.

Site Kit is a one-stop solution for WordPress users to use everything Google has to offer to make them successful on the web.

Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.

MySQL is an open-source relational database management system.

Google Analytics is a free web analytics service that tracks and reports website traffic.

BackboneJS is a JavaScript library that allows to develop and structure the client side applications that run in a web browser.

All in One SEO plugin optimizes WordPress website and its content for search engines.

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

Endurance Page Cache adds basic file-based caching to WordPress.

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.

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

All in One SEO optimizes a WordPress website and its content for search engines.