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Attempting to add a custom Domain to an App Service.
I have ensured that the CName and TXT record provided in the UI while adding the custom domain have been added.
I have verified using external tools and the cloud shell within the Azure portal - and all show that the DNS entries are present.
When I attempt to validate the domain on the app service however it says it cannot find the DNS records.
It has been over 24 hours, so I don't believe propagation is the issue here.
I also had another custom domain, added to a different App Service, and that validated much more quickly; so there just appears to be an issue with this one combo.
Any suggestions are appreciated!
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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I had the same problem, I used ipconfig /flushdns and got it working.
I found this a bit confusing as I had assumed the DNS check was being done from Azure not from my browser.
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Hi @Matt Charron
Kindly ensure that the CNAME record points to your app's default domain (appname.azurewebsites.net) and that the TXT record follows the exact format specified by Azure.
Use App Service Diagnostics in the Azure Portal under "Diagnose and Solve Problems" > "Availability and Performance" to identify issues. You mentioned that 24 hours have passed, which should be sufficient for DNS propagation.
However, in rare cases, some DNS servers take longer to update.
Confirm your App Service Plan is at least Basic tier, as Free/Shared tiers don’t support custom domains.
Sometimes, Azure's validation service takes longer to recognize DNS changes, even when external DNS resolution works fine. Try re-entering the domain or reinitiating the validation process.
references:https://learn.microsoft.com/en-us/answers/questions/699662/unable-to-verify-domain-name-in-azure-app-services
Hi @Matt Charron
We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Hello -
Unfortunately it's still not allowing us to connect the custom domain. I've waited several days now and while other tools seem to "see" the DNS entries - the validation option on App Service does not.
Hi @Matt Charron
apologize for any inconvenience caused on this.
Could you please refer to this documentation
https://learn.microsoft.com/en-us/azure/app-service/troubleshoot-domain-ssl-certificates#domain-verification-is-not-working
Hi @Matt Charron
We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution, please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.