Is it possible to disable the default URL assigned to the azure web app?

[PDDEV1]

Is it possible to disable the default URL <webapp>.azurewebsites.net for a web app?

[#2]

@PDDEV1 

I don't think you can turn off access to the website via [your cloud service name].azurewebsites.net domain.
However what you could do is include a rewrite rule in your web.config, so that whenever someone tries to access your website via azurewebsites.net domain, they are automatically redirected to your custom domain.

How to: Redirect the default *.azurewebsites.net domain to your custom domain on Azure Web Apps
https://www.zainrizvi.io/blog/block-default-azure-websites-domain/

Setup custom domain URL
https://docs.microsoftcommunitytraining.com/docs/setup-custom-domain-url

[#3]

@PDDEV1 

Hi it is not possible but you can map a custom domain

https://docs.microsoft.com/en-us/azure/app-service/app-service-web-tutorial-custom-domain