Greetings!
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Do you own this domain, if yes then have you delegated to azure and if you are don't delegated to azure properly then creating a DNS zone in azure all those steps will not going to help.
I'm assuming that you own this Domain somewhere and delegated it.So,Could you please confirm this and then follow these steps whatever the articles are provided to you.
- Obtain a custom domain if you don't have one. You can purchase one from a domain provider. For example, see Buy a custom domain name.
- If your DNS domains are hosted on Azure, delegate the domain provider's DNS to Azure DNS. For instructions, see Delegate a domain to Azure DNS. If you use another domain provider for DNS, manually validate the domain by entering the required DNS TXT records.
How to Configure a custom domain on Azure Front Door by using the Azure portal
Refer: https://zcusa.951200.xyz/en-us/azure/frontdoor/standard-premium/how-to-add-custom-domain
The Add or update the CNAME record pane appears with the necessary CNAME record information. If using Azure DNS hosted zones, you can create the CNAME records by clicking Add on the pane. If using another DNS provider, manually enter the CNAME record name and value as shown on the pane.
Once the CNAME record is created and the custom domain is associated with the Azure Front Door endpoint, traffic starts flowing.
After validating and associating the custom domain, ensure that the custom domain is correctly referenced to your endpoint.
Finally, verify that your application content is being served by using a browser.
If above is unclear and/or you are unsure about something add a comment below.
Please don’t forget to close the thread by clicking "Accept the answer" wherever the information provided helps you, as this can be beneficial to other community members.
Regards,
Ganesh