Hunchentoot
Hunchentoot is a robust and easy to use HTTP server. As a stand-alone web server, Hunchentoot is capable of HTTP/1.1 chunking (both directions), persistent connections (keep-alive), and SSL.

Hunchentoot currently works with LispWorks (which is the main development and testing platform), CMUCL (with MP support), SBCL (with Unicode and thread support), OpenMCL, and ACL.

It's written by Edi Weitz and can be found at https://github.com/edicl/hunchentoot.

Cyrus Harmon has contributed support for virtual hosts, CGI, and authentication in Hunchentoot.

A basic tutorial on using Hunchentoot for Lisp web apps is available here.

Hunchentoot-related pages