Learn Editor: Update front-door-custom-domain.md

Author: jainsabal

articles/frontdoor/front-door-custom-domain.md

@@ -16,6 +16,10 @@ ms.date: 08/12/2024
 
 [!INCLUDE [Azure Front Door (classic) retirement notice](../../includes/front-door-classic-retirement.md)]
 
+> [!IMPORTANT]
+> Starting August 15, 2025, Azure Front Door (classic) will no longer support new domain onboarding or profile creation. Migrate to [AFD Standard and Premium](https://ms.portal.azure.com/#"https://ms.portal.azure.com/#") to create new domains or profiles and avoid service disruption. [Learn more](https://ms.portal.azure.com/verifyLink?href=https%3A%2F%2Flearn.microsoft.com%2Fazure%2Ffrontdoor%2Fmigrate-tier%3FWT.mc_id%3DPortal-Microsoft_Azure_Frontdoor&id=Microsoft_Azure_Frontdoor"https://ms.portal.azure.com/verifylink?href=https%3a%2f%2flearn.microsoft.com%2fazure%2ffrontdoor%2fmigrate-tier%3fwt.mc_id%3dportal-microsoft_azure_frontdoor&id=microsoft_azure_frontdoor")
+> Switch from Azure-managed certificates on existing domains to Bring Your Own Certificate (BYOC) or migrate to [AFD Standard and Premium](https://ms.portal.azure.com/#%22https://ms.portal.azure.com/#%22) by August 15, 2025 to avoid service disruption. Existing managed certificates will be auto renewed before August 15, 2025, and remain valid until April 14, 2026.  [Learn more](/azure/frontdoor/front-door-custom-domain-https?tabs=powershell)
+
 This article shows how to add a custom domain to your Front Door. When you use Azure Front Door for application delivery, a custom domain is necessary if you want your own domain name to be visible in your end-user request. Having a visible domain name can be convenient for your customers and useful for branding purposes.
 
 After you create a Front Door profile, the default frontend host is a subdomain of `azurefd.net`. This name is included in the URL for delivering Front Door content to your backend by default. For example, `https://contoso-frontend.azurefd.net`. For your convenience, Azure Front Door provides the option to associate a custom domain to the endpoint. With this capability, you can deliver your content with your URL instead of the Front Door default domain name such as, `https://www.contoso.com/photo.png`.