Can't buy domain through azure app service domain

Question

When I want to buy domain using Azure App Service domains I get the following message:

This domain is unavailable. Here are some similar domains that are available.

But when I check on goDaddy it says that domain is free...Domain is ending with .dev if that helps.

Answer 1

Hii @Adam Pavucek,

Thank you for reaching us regarding the issue of buying a domain through Azure App Service.

Azure App Service Domains supports purchasing and managing only a limited, predefined list of top‑level domains (TLDs) like com, net, co.uk, org, nl, in, biz, org.uk, and co.in. Azure App Service Domains acts as a reseller and does not support all TLDs that GoDaddy sells directly.

Why GoDaddy shows it as available

1. .dev is a Google-owned generic TLD
2. .dev enforces HTTPS and HSTS by default at the browser level
3. Because of registry and security enforcement rules, Azure App Service Domains does not broker .dev domains.

Recommended options:

• Buy the .dev domain directly from GoDaddy (or another registrar like Namecheap etc) Then map it to your Azure App Service:

1. Purchase the .dev domain externally
2. In Azure App Service > Custom domains
3. Add the domain and configure DNS (A/CNAME + TXT records)
4. Bind SSL (required because .dev enforces HTTPS by default)

Azure fully supports using .dev domains, it just doesn’t support buying them via App Service Domains.

Important .dev consideration

All .dev domains require HTTPS (HSTS enforced by browsers). Make sure:

• Your App Service runs on HTTPS
• You configure an Azure-managed certificate or upload your own SSL certificate

Reference:
https://learn.microsoft.com/en-us/azure/app-service/manage-custom-dns-buy-domain
https://learn.microsoft.com/en-us/azure/app-service/app-service-web-tutorial-custom-domain?tabs=root%2Cazurecli

Kindly let us know if the above comment helps or you need further assistance on this issue.

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