What does this DNS entry do?

by 
Type - Host - Value - TTL

CNAME Record - www - www.my_domain.ai.herokudns.com - 30 min

I am using Namecheap DNS to host to Heroku which provided that CNAME entry above.

Does it assume that a host of www is actually www.my_domain.ai, that is the confusing part as www seems too general.

Answer

CNAME designates that the record is the Canonical name for the server, essentially an alias which indicates that it is a webserver, hence the WWW portion of the name.

Attribution
Source : Link , Question Author : zen lee chang , Answer Author : Davidw

Leave a Comment