Custom Domains with Deployments
Connecting Your Domain To Your Deployment
First, you need to go into the "Deployments" pane of your Repl and click the "Settings" tab:
From there, you can add your domain to the domain linking panel:
Next, you will be prompted to copy information for the A and TXT records. The A record points your domain to your Repl, and the TXT record verifies that you own the domain.
Once you have copied the info, you can add the A and TXT records to your domain. You can link your Repl to a root domain or a subdomain. In my case, the root domain would be thedevbird.com, but for this tutorial, we will link the domain: kaboom.thedevbird.com to our Repl.
I am using Hover for DNS management in this tutorial, but it should be comparable to any other DNS manager.
Enter @ for hostname and the IP address from your deployments settings panel.
Copy and paste the TXT record to your DNS settings and save the new record.
Name Field
The name is your subdomain prefix, such as kaboom (e.g.: kaboom.thedevbird.com) or your root domain: example.com.
Target Field
The target is what the record will point to, usually the IP you copied from the domain linking panel.
Waiting for DNS Propagation
The time to fully propagate DNS changes can range from a few minutes to about 24-48 hours. We recommend using a tool such as https://whatsmydns.net/ to keep track of the DNS propagation. All you need to do is input your custom domain (tutorial.thedevbird.com in this case) and select the DNS record type you want to check.
In the screenshots below, you can see how quickly the TXT record propagated. In contrast, when making this tutorial, the A record had only propagated to one primary DNS server in the same time span.
The key to linking your domain is patience. Your Repl won't be able to connect to your custom domain until the DNS records are propagated all the way through.
We Have Liftoff!
Once your DNS records have been fully propagated, you can check back on the Domains tab for your Deployment, which should show that your domain has been verified:
If you don't see this, please send a support ticket via https://replit.com/support and make sure to include a screenshot of your DNS records, the custom domain you want to link, and the link to your Repl.