OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.

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

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

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

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.

Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.

Nuxt is a Vue framework for developing modern web applications.

Varnish is a reverse caching proxy.

PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.

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