Connect external subdomain to one of my Netlify subdomain


I was able to configure my app so that any subdomain points to the same app.
My users can now access their app through urls like:,

Now, I’d like to let them access the same subdomain but through their domains. Examples: should point to should point to

Is this doable with Netlify? If so, do you know what DNS settings should be updated on the customer’s end and on mine?

Thank you for your help.


Found the solution :slight_smile:

Two things are needed:

(This technically only redirects all the external domains to the same app, so not exactly what I asked initially, but then it’s trivial from the URL to figure out which customer data should served)

Hey there,

Thanks so much for reaching out and sharing your solution! We appreciate you taking the time to help future Forums members who encounter something similar.

Happy building :rocket: