How to set up Azure IP alias directly using DNS name?

Question

I'm setting up my website on Azure service. My DNS zone is 'xxx.io' (for example). I can create address such as 'main.xxx.io' or 'web.xxx.io' using Alias record sets and they work well. But I can't access the website directly using 'xxx.io' as address. How do I achieve this?
PS: my colleague says it used to work but now it doesn't, and he doesn't know how either.

Answer 1

you can create a A record called @ with the value being IP address of your website. you cant have CNAME for @ (root domain). Well you can, but its against the rules (afaik).

Answer 2

If your website is hosting on Azure service like virtual machines. You could just add an A record named @ to point to the public IP address of Azure VM.

If your website is hosting on Azure web app service, you have to add an A and TXT type records in the DNS zone for using root domain. The app service plan(non-ASE) is multiple-tenant, you have to use TXT record to validate which website will be using the domain hostname.

The TXT record named @ , the value is mywebapp.azurewebsites.net ; The A record named @ , the value is your website public IP.

You could refer to this picture and get more details here .