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

Fastly is a cloud computing services provider. Fastly's cloud platform provides a content delivery network, Internet security services, load balancing, and video & streaming services.

Varnish is a reverse caching proxy.

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

Plesk is a web hosting and server data centre automation software with a control panel developed for Linux and Windows-based retail hosting service providers.

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.

Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.

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

Font Awesome is a font and icon toolkit based on CSS and Less.

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

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

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