Multiple custom domains with passwordless oidc sso

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1

Is it possible to have multiple custom domains?
If so, can we have sso across these custom domains?

Our use case:
we have 2 groups of apps, one group needs to have example.com as a custom domain and other group needs to have example2.com. Is it possible for both groups to have sso regardless of custom domain used?

2

Hi @dinesh,

Have you looked at this article:

It demonstrates SSO across domains.

Hope this helps!

Thanks,
Dan

3

yes, I just want to confirm that to implement sso, is it must to have a common domain(accounts.google.com) or are there any other ways?

4

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5

Hi team! :wave:

This is a heads-up that we’re hosting an Ask Me Anything (AMA) session :loudspeaker: on our new Multiple Custom Domains (MCD) capability. Our Platform Infrastructure Product Manager, Pawan Bhardwaj, will be live on June 25, 2025, from 9 AM to 11 AM PST :spiral_calendar_pad: to answer all your questions—from high-level strategy to specific technical implementation.

You can submit your questions from now until June 24 :pencil2:, and we’ll provide detailed written answers during the live event.

If you have any questions about managing multiple brands :office:, creating tailored login experiences :art:, or simplifying your architecture with a single tenant :gear:, feel free to drop them in this thread. We look forward to your questions and seeing you there!

June 25 Auth0 Community Ask Me Anything: Multiple Custom Domains

6

Hi everyone! :waving_hand:

Multiple Custom Domains (MCD) support in a single tenant is now available in Early Access (EA), only for Enterprise customers. This capability lets you:

  • :key: Securely manage multiple branded domains under one Auth0 tenant
  • :rocket: Improve user trust with seamless, white‑labeled login experiences
  • :shield: Host customer‑specific domains to meet data residency and regulatory requirements

To learn more, check out the detailed documentation:
https://auth0.com/docs/customize/custom-domains/multiple-custom-domains

For detailed use cases and best practices, explore our guides here:

If you’re interested in using this feature, please contact your Sales Executive or Technical Account Manager or open a support ticket through the Auth0 Support Center.

Thank you for being part of the Auth0 Community! :tada:

Dawid