Unable to create custom domain on Azure CDN Endpoint

jpride 0

I've been trying for hours to add a custom domain to our CDN endpoint after creating a CName record set to the DNS Zone resource, all according to the Azure documentation. Any help that can be provided would be very much appreciated. Here is the CName record: The error is:

We couldn't find a DNS record for 'cdn.prideconceptsllc.com' that points to 'prideconcepts-cdn-profile.azureedge.net'. Before you can associate a domain with this CDN endpoint, you need to create a CNAME record with your DNS provider for 'cdn.prideconceptsllc.com' that points to 'prideconcepts-cdn-profile.azureedge.net'.

Silvia Wibowo 3,986 Reputation points Microsoft Employee

2024-02-14T00:42:37.37+00:00

Hi @jpride , the error message pointed out that your CNAME record is not correctly configured.

It would help to include screenshot or information (feel free to mask sensitive info) of your CNAME record entry. Did you use Azure DNS?

If you have correctly configured CNAME record, the following command (in PowerShell or Linux CLI) will give you IP address(es):

nslookup cdn.prideconceptsllc.com

Now it outputs error message:

can't find cdn.prideconceptsllc.com: Non-existent domain

Have you done the steps to Delegate Domain from your domain hosting service? Please refer to: Delegate the domain to Azure DNS
jpride 0 Reputation points

2024-02-14T01:01:19.17+00:00

@Silvia Wibowo weird. I attached the screenshot when I submitted this question. Yes, I am using Azure DNS as directed by all of the Azure documentation. Hopefully this image I'm inserting will show up this time below:
Silvia Wibowo 3,986 Reputation points Microsoft Employee

2024-02-14T03:12:17.4766667+00:00

Hi @jpride , another step to check: have you done the steps to Delegate Domain from your domain hosting service? Please refer to: Delegate the domain to Azure DNS
jpride 0 Reputation points

2024-02-14T03:46:18.5733333+00:00

@Silvia Wibowo Aha! I'll check that now. Thanks! If I do this, it won't mess up access to our website, right?
jpride 0 Reputation points

2024-02-14T04:08:50.3033333+00:00

@Silvia Wibowo I started to change the DNS servers for my web hosting, but it will break our website and email services.
Silvia Wibowo 3,986 Reputation points Microsoft Employee

2024-02-14T23:26:35.4766667+00:00
Hi @jpride ,

If you already host your DNS somewhere else (not in Azure DNS), you can continue using it to avoid breaking any existing setup.

Add CNAME record into your DNS to map 'cdn.prideconceptsllc.com' to 'prideconcepts-cdn-profile.azureedge.net'.

Then test from your browser https://cdn.prideconceptsllc.com or from PowerShell/Linux CLI: nslookup cdn.prideconceptsllc.com
jpride 0 Reputation points

2024-02-14T23:34:35.6766667+00:00

Thank you, @Silvia Wibowo but that is exactly what I've been trying to do. It fails each time with the error message I specified.
Silvia Wibowo 3,986 Reputation points Microsoft Employee

2024-02-15T03:32:49.1266667+00:00
Hi @jpride , please clarify exactly what your current configuration and at which point you encountered error message, so we are on the same page.

Have you created a CNAME entry in your DNS server?

Have you tested the CNAME entry with nslookup command?

Have you configured a custom domain in Azure CDN? Or are you trying to do this but you got error message "We couldn't find a DNS record for 'cdn.prideconceptsllc.com' that points to 'prideconcepts-cdn-profile.azureedge.net'" ?

Have you uploaded SSL certificate for your custom domain into Azure CDN?

Can you load your website using the original CDN endpoint: prideconcepts-cdn-profile.azureedge.net?
jpride 0 Reputation points

2024-02-15T04:15:05.7433333+00:00
Yes, as you can see below, the CNAME record is created, but nslookup or attempting to open https://cdn.prideconcepts.com doesn't find it. Which is also likely why adding the custom domain doesn't work because it throws the error you mention aboiut not finding the DNS record.

Yes, as you can see below, the CNAME record is there and

1 answer

KapilAnanth-MSFT 46,876 Reputation points Microsoft Employee

2024-02-15T11:51:32.3566667+00:00
@jpride

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

I understand that you would like to add a custom domain to Azure CDN.

From the looks of it,

Your DNS Zone is not hosted in Azure.

Instead, it is hosted in BlueHost

From digwebinterface.com

And there is no CNAME record created in your Hosting partner (BlueHost) for "cdn.prideconceptsllc.com"

Now, you must check with the documentations of your Hosting partner on how to create a CNAME record.

I think this doc explains it : https://www.bluehost.com/help/article/dns-management-add-edit-or-delete-dns-entries#add

Once you have added the CNAME record, please make sure the DNS Propagation happened and nslookup cdn.prideconceptsllc.com resolves to "prideconcepts-cdn-profile.azureedge.net"

Since this is a third party hosting, we cannot comment on how long will it take for DNS Propagation to happen once you have added the CNAME record.

NOTE:

Creating a DNS Zone named "prideconceptsllc.com" in Azure does not indicate the domain is hosted in Azure.

This document talks about this : Delegation of DNS zones with Azure DNS.

There is no requirement that DNS Zone should be hosted in Azure, the only requirement is that the FQDN resolves to the domain of the Azure CDN endpoint for you to add it as a custom domain.

See : Map the permanent custom domain.

Hope this clarifies.

Cheers,

Kapil
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