If you want to add a custom tracking domain for GoDaddy domains, please check this video or follow the steps below:
Add a new CNAME record for your domain in the DNS zone
Name: inst
Type: CNAME
Value: prox.itrackly.com
Add the new CNAME in Instantly -
inst.yoursendingdomain.com
in Instantly with yoursendingdomain.com being the domain you added the CNAME record under
Click on 'Check Status'. If everything is set up correctly, you will receive the following notifications below the Check Status button: CNAME Verified, SSL Verified
Not using GoDaddy as a domain registrar? Here are other providers and how to add a CNAME record to each one of them:
If your domain registrar is not shown here please google: (name of your domain registrar) how to add cname record. Usually the first page that shows in the search results is the one that shows you how to add a CNAME record.
Or you can reach out to the support team of your domain registrar and ask them where the DNS settings are to add a CNAME record to your domain.