From https://sling.apache.org/documentation/the-sling-engine/mappings-for-resource-resolution.html

Sling url mapping

/etc/map
      +-- http
           +-- example.com.80
           |    +-- sling:redirect = "http://www.example.com/"
           +-- www.example.com.80
           |    +-- sling:internalRedirect = "/example"
           +-- any_example.com.80
           |    +-- sling:match = ".+\.example\.com\.80"
           |    +-- sling:redirect = "http://www.example.com/"
           +-- localhost_any
           |    +-- sling:match = "localhost\.\d*"
           |    +-- sling:internalRedirect = "/content"
           |    +-- cgi-bin
           |    |    +-- sling:internalRedirect = "/scripts"
           |    +-- gateway
           |    |    +-- sling:internalRedirect = "http://gbiv.com"
           |    +-- (stories)
           |         +-- sling:internalRedirect = "/anecdotes/$1"
           +-- regexmap
                +-- sling:match = "$1.example.com/$2"
                +-- sling:internalRedirect = "/content/([^/]+)/(.*)"