No specific info about version 13.0. Please visit the main page of WebMon on Mac Informer.
Abyss Web Server X1 is a free personal Web server.
onCourse Server application allows you to log in, edit and view your data.
Use a secure server that conserves resources while searching the web .
Includes additional programs for use with Lion Server.
WebMon can configure OS X's built-in web server to support WebDAV, PHP, and SSL.