The http.server.rewrite vocabulary defines two responder types which can help make website URLs more human-friendly.
Rewrite responder overview

Directory rewrite responders:

rewrite

<rewrite> ( -- rewrite )

Virtual host rewrite responders -- these chop off the value in the suffix slot from the tail of the host name, and use the rest as the parameter value:

vhost-rewrite

<vhost-rewrite> ( -- vhost-rewrite )