Important to know
Subdomains generally take 24-48 hours to setup.
You can only do this if you're on an Enterprise plan or higher.
Subdomains ONLY work for viral sweepstakes contests & leaderboard contests. They do not work for content upgrades or interactive popups currently.
You can also use a ROOT level domain instead.
1 - Go to this page: https://vyper.io/subdomains/create
2 - Add your subdomain or domain on this page, without http:// or https://
4 - For example if your subdomain is http://CONTEST.yourdomain.com
--- set your CNAME record for CONTEST to vc.vyper.io
5. Wait up to 24 hours for your subdomain to work.
Once you're on that page you'll need to create a CNAME record.