What is a subdomain?
A subdomain is an additional part of your main domain name. For example,
.coworkingspace.com are subdomains of the coworkingspace.com domain name. You can select a word for the subdomain to access your web app from your custom URL. Some common choices:
Set up a custom subdomain
Before setting up a custom subdomain in your application, you must complete the setup on your domain registrar's side.
In your domain registrar account
Log in to your domain registrar account.
Open the DNS control panel.
Create a new record with the following data:
your custom subdomain, for example
leave the default value
Double-check the correctness of the data. Instructions for common registrars:
In your web app
After the setup is complete on the side of your domain registrar, please follow the steps below to configure it in your web app:
The app owner needs to open Network Settings > General.
Enter your full custom subdomain into the "Custom Domain" field. For example,
Verify the setup
Once DNS records have been changed, they can take some to propagate, which means global DNS providers recognize they have been changed. Unlike nameserver changes, which can take up to 48 hours to propagate, the propagation of CNAME records is usually very quick.
A custom subdomain added to your web app will appear unverified until this process is complete and full propagation is achieved.