Custom domain name from GoDaddy with DO Apps

I created two simple Python apps from the docs.

I try this And even more simple solution -

And when I try to reach them through generated domain like this - everything working fine.

But when I try to add domain - I get ERR_CONNECTION_CLOSED.

The main problem is that there is no information in what I need to change, or add.

Should it run out of the box with custom https domain?

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June 19, 2023

Hey @donprusne,

I’ll recommend checking the following article: to https%3A%2F%2Fcloud,Name%2C then click to proceed.

Add a Custom Domain Using the Control Panel

Go to, click on your app, and click on the Settings tab. Then, click the Edit link to the right of Domains, and the Add Domain button.

On the Add Domain form, enter your custom domain name at the top of the form in the text area under Domain or Subdomain Name, then click to proceed.

You are given a choice to delegate your DNS management to DigitalOcean or to point to your app by adding a CNAME record to your domain configuration.

If you decide to use DigitalOcean’s nameservers, copy and paste DigitalOcean’s nameservers (,, to your domain’s registrar nameserver records. See our Community tutorial on how to delegate your domain to DigitalOcean’s nameservers from popular registrars.

DNS changes can take up to 72 hours to propagate across the internet. You can check the progress of the transfer in App Platform’s dashboard.

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