After deploy your any project with vercel, you can use your custom domain name.

First follow https://vercel.com/[account]/[project]/settings/domains.

And add your custom domain name like beta.wr.do:

Then config the CNAME content on WR.DO:

Waiting for DNS records to take effect on vercel:

Done!

Domain verification

You need add a TXT record to verify the domain ownership on dashboard/records when you first apply a custom domain.

The TXT record's name is _vercel and value is vs-domain-verify=xxxxxx, you can find them in https://vercel.com/[account]/[project]/settings/domains.