Perfect vs Puma

Sanic

A Python web server and web framework that’s written to go fast

Nodal.js

A web server for Node.js that was built to make developer's life easier

Caddy

An Efficient Web Server with Automatic HTTPS

lighttpd

A lightweight and high-performance event-driven web server

Unicorn

Web Servers

XAMPP

An open-source cross-platform web server that is used primarily for local development

Gunicorn

Gunicorn (Green Unicorn) is a WSGI HTTP Server for UNIX, fast clients and sleepy applications

Unicorn

Web Servers

Harp

The static web server with built-in preprocessing

Nodal.js

A web server for Node.js that was built to make developer's life easier