False positive: auth.accounts.radiantmobile.com - AI-Driven Threat Detection

Please review auth.accounts.radiantmobile.com. This is the Firebase Authentication helper hostname used by Google and Apple sign-in on accounts.radiantmobile.com.

On 2026-10-20, we reproduced the block using a NextDNS profile with only AI-Driven Threat Detection enabled and no third-party blocklists. DNS returned A 0.0.0.0 and AAAA ::. NextDNS logs identified the reason as “AI-Driven Threat Detection”.

Disabling only AI detection restored normal DNS answers and HTTP 200 with a trusted certificate. Re-enabling it blocked the hostname again. The default hostname radiant-mobile.firebaseapp.com and staging auth hostname remained accessible.

Please remove this false-positive classification and let us know whether any action is needed from the domain owner.