A year ago we setup a help center on hubspot which worked well but for some reason team decided to switch it over to Intercom. Everything was setup and we were only left with pointing subdomain to Intercom, I feel setting custom domain is very simple and explained clearly here (https://developers.intercom.com/installing-intercom/docs/set-up-your-custom-domain). Pointing the custom domain to your intercom help page is pretty easy using a CNAME in your DNS record. The only thing which i found bit tricky is that by default it won’t work on https (that's not good).but this post will help you to get SSL with the help of AWS cloudFont. Let's start 1. Login to your AWS account here( https://console.aws.amazon.com), you have to create in case you don't have. 2. Go to Cloudfront console (https://console.aws.amazon.com/cloudfront) 3. Click Create Distribution 4. Click **Get Started under Web** 5. Under Origin Settings > Origin Domain Name, enter Intercom host domain i.e. *custom.