Domain validation request for Firebase shared domains

Hi, I’m submitting an app (SLP Booking, User-managed OAuth, Unlisted)
and need manual domain verification.

My app is hosted on Firebase, so the domains are shared Google domains
that I cannot verify via TXT record, HTML file, or meta tag:

Since these are Firebase shared domains and I don’t control their DNS or
root, could you please help with manual verification for these two domains?

Thank you.

Hello,

Thank you for reaching out in relation to Our Domain Validation process, the next steps will be sent to you via DM. Please refer to our domain validation resource: Domain Validation Explanation for any further questions you may have about the process.

Thank you.