In order to configure your custom tracking domain in Prospect.io, you need to set up a CNAME record in your DNS settings.
If your DNS host is CloudFlare, here is their instruction on how to add a CNAME.
You will need to enter the following values but replace [domain-com] and [domain].com with your own domain name.
Content > Target:
Make sure that the Proxy status is on "DNS only". The orange cloud should become grey.
Then navigate to Settings >Mails > Deliverability and verify your tracking domain:
For example: if your website is mycompany.us, you would use these values:
And then verify
click.mycompany.us in Prospect.io