'm trying to verify domain ownership for our OAuth redirect URL, us-central1-myappointment-ai-8756e.cloudfunctions.net, which is a Google Cloud Functions / Firebase Functions domain.
None of the self-service verification methods work for this domain:
- TXT record: not possible — this is Google-owned infrastructure, we have no DNS control over
cloudfunctions.net. - HTML file / meta tag at the domain root: not possible — Google’s Cloud Functions gateway only routes a request to our code when the path exactly matches a deployed function name. Any other path, including the bare root, returns Google’s own generic 404 before it ever reaches anything we control (confirmed by testing directly).
Our other domain, myappointment.ai, is fully under our control and verified separately. Could someone from Zoom manually approve or advise on an alternative verification path for a Cloud Functions-hosted callback URL?