Custom Domain Verification Stuck in “Pending Verification” Despite Correct CNAME (Blocking Forms / Account Linking Demo)

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Hi Auth0 Community

I’m running into an issue with Auth0 Custom Domains that I haven’t been able to resolve and would really appreciate a sanity check from folks who’ve seen this before.

What I’m trying to do

I’m setting up a custom domain so I can use HTML components inside Auth0 Forms, which is required for an account linking demo I’m building using Actions + Forms + post-login continuation.

This demo is currently blocked because the custom domain will not verify.

What I’ve done so far

I’ve tried this multiple times to rule out mistakes:

  1. Added a custom domain in Dashboard → Branding → Custom Domains

  2. Selected Auth0-managed certificate

  3. Generated the CNAME record from Auth0

  4. Added the CNAME in DNS (domain is managed outside Auth0)

    • Host / Name: auth

    • Target: <tenant-id>.edge.tenants.us.auth0.com (exact value provided by Auth0)

  5. Waited well over 90 minutes (and retried after deleting + re-adding the record)

  6. Verified using external DNS tools (CNAME lookup)

Despite this, Auth0 still shows:

Status: Pending verification
Error: “Your verification record was not found. You might need to wait a few minutes before we can discover it.”

Things I’ve already ruled out

  • DNS record exists and is correct

  • No conflicting records for the same hostname

  • Using Auth0-managed certs (not self-managed)

  • Tried multiple custom domains (same result)

  • Understand DNS propagation delays, this has persisted beyond what I’d expect

Questions

  1. Is there a specific order of operations required for custom domain verification beyond what’s documented?

  2. Are there tenant-level restrictions (trial tenants, plan limits, etc.) that could silently block verification?

  3. Is there any Auth0-side cache or polling delay that could require waiting much longer? In any case its been multiple days and the domain still is not able to be verified.

  4. Any recommended debug steps beyond standard DNS checkers?

Why this matters

This is currently blocking:

  • HTML-based Forms

  • Account linking flows that rely on post-login continuation

  • A CIAM demo I’m preparing

To actually qc check the flow the custom domain verification is the only blocker.

If anyone has run into this before or knows what I might be missing, I’d really appreciate the guidance. Happy to provide screenshots or additional details if helpful.

Thanks in advance :folded_hands:

3

Hi @ray4

Thank you for reaching out to us regarding this issue!

We appreciate the details that you provided, according to our Troubleshoot Custom Domains documentation, it is possible to take up to 48 hours for the DNS to be verified and Auth0 does not have control over such unexpected delays.

As there could be different causes for this issue, please allow me to share some documentations and articles that go over this:

While we understand how such a long time can cause frustration, it is important to double-check the configuration according to our documentations and treat this process with patience as much as possible, in case that everything has been correctly set up, but the system itself is creating the experienced delay.

Looking forward to your input, if you were able to get the Custom Domain verified, if any of the mentioned articles have solved the issue or if this was just a matter of waiting for the process to complete on it’s own.

Have a great one!
Gerald