Adding branded URLs to authentication with Microsoft Entra External ID Custom URL Domains
Table of Contents
What are custom URL domains?
- Custom URL domains allow users to replace default Microsoft authentication domain endpoints with their own brand names, providing a personalized domain endpoint for their application's sign-in experience.
- This customization helps reflect a brand or business identity, such as Contoso Ltd. using their domain instead of Microsoft's default authentication endpoint.
- Staying on the same domain during sign-in helps mitigate the impact of third-party cookie blocking, as many browsers block cross-domain cookies on requests to domains different from the one in the browser's address bar.
How custom URLs work
- Configure custom URL domains in the Microsoft Entra Admin Center under: Settings > Domain names > Custom URL domains.
- Add your custom domain name and complete the verification process by adding the required TXT details in your DNS settings.
- Enable the verified domain to use it as a custom URL domain.
- To implement custom URL domains, configure Azure Front Door as a reverse proxy and add your custom URL domain in that instance.
- Refer to the documentation for detailed configuration guides on setting up custom URL domains with Microsoft Entra External ID.
Let’s stay connected
- Visit the Microsoft Entra developer center to learn more or test out features of the product.
- Follow Microsoft Entra on YouTube for video overviews, tutorials, and deep dives to stay informed about the latest updates and capabilities.
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