configuring a subdomain

I am trying to configure the subdonaim, in aws but its not working, where I configure it as follow; below is what I have tried:

subdomain.domain.com

type: CNAME

TTL: 60

value domain.com/page.php

So I was thinking of an alternative solution. Since linking to an ip address to a website, if there was a way i could grab the ip address of that domain.com/page.php, but I am not sure if that's even possible.