My intention is to run my server on a DigitalOcean droplet using a subdomain, server.mywebsite.com.

But I still want to run my client on Vercel (previously known as Zeit) at mywebsite.com.

So:

frontend -> mywebsite.com on Vercel
backend -> server.mywebsite.com on DigitalOcean

Is this possible?

I tried following this post, but with no success: https://www.digitalocean.com/community/questions/how-do-i-create-an-a-record-in-zeit-now-to-point-to-digital-ocean-droplet

I added my droplet’s IP address to my Vercel config as an A record and pointing to server.mywebsite.com, but when I visit server.mywebsite.com, I just get a 404 Vercel error.

The deployment could not be found on Vercel.

DEPLOYMENTNOTFOUND