What?
This has been a problem with Glitch for a while.
beta.statcord.com is sent to glitch. Works fine
It looks like you’re pointing the CNAME at a non-glitch subdomain? (.preview.edge...)
When I try a CNAME record with a Glitch subdomain it gives the “project not found” page, which is what it has always done, as far as I know. I would be happy to be wrong here though! Perhaps it was fixed, and there’s some trick beyond a simple CNAME that you need to use?