Previously, you had to work via yourcompany.palzin.co domain.
We're happy to say that Palzin now takes care of your custom domain including SSL automatically. If you haven't set up Palzin on a custom domain yet, now is a great time to do that.
Add a CNAME record to your DNS, pointing the custom domain (feedback.yoursite.com) to cname.palzin.co.
Check out this help article for full details.