Worked out from the incidents Firebase reported, so it is an estimate and not a measurement.
Firebase reliability, last 90 days
14Incidents reported
0Full outages
13 h 30 minTypical duration
33 h 36 minLongest incident
Last incident: “We are tracking a networking issue that may affect a significant part of the fleet. Devices may be unable to connect to backends that support IPv4 only (IPv6 and dual support are not affected).”, 5 days ago.
Recent incidents
We are tracking a networking issue that may affect a significant part of the fleet. Devices may be unable to connect to backends that support IPv4 only (IPv6 and dual support are not affected).
Degraded
The issue has been identified and mitigation is in process.
Partial performance degradation for RTDB users in us-central1 from 6 AM to 8:30 PM PT.
Degraded
We've successfully mitigated the network overloads on RTDB's backend that were causing network delays and intermittent 500's to REST requests.
Reduced overall capacity for Android, iOS and Arm Emulator devices from 5 PM to 10 PM PT.
Network maintenance window extended by 2 hours, ETA 10PM. Reduced capacity for all Android & iOS physical, and Arm emulator devices.
Reduced overall capacity for Android, iOS and Arm Emulator devices from 2 PM to 8 PM PT.
Network maintenance from 2PM to 8PM PT resulting in reduced capacity for all Android & iOS physical, and Arm emulator devices.
Drop in ARM emulator capacity due to network disruption to datacenter
Capacity has been restored.
Questions
Is Firebase down right now?
Firebase’s official status page says: All Systems Operational. This page checks it again when you load it, at most every 5 minutes.
When was Firebase last down?
The most recent incident Firebase reported was “We are tracking a networking issue that may affect a significant part of the fleet. Devices may be unable to connect to backends that support IPv4 only (IPv6 and dual support are not affected).”, 5 days ago (2026-10-22 22:54 UTC). None of its incidents in the last 90 days were a full outage.
What should I do if Firebase is down?
Pause deploys that depend on it, queue or retry failed jobs once it recovers, and check whether a mirror or cache can cover the gap.
Firebase Hosting is down — is Firestore affected?
No. Firebase reports each product — Auth, Firestore, Realtime Database, Hosting, Cloud Functions — as its own incident row, so a Hosting problem leaves the database alone.
Crashlytics data is missing but the app runs fine?
Crashlytics ingestion is a separate component from the products your users actually touch. Delayed crash reports do not mean your app's backend is down.
How do I tell if Firebase is down for everyone or only for me?
If the status above is operational but Firebase still fails for you, the cause is probably on your side: try another network, clear the cache, or check your own connection. If it shows a degradation or an outage, others are affected too.
How can I get alerted when my own site goes down?
OpenUptime checks your site every minute and sends an alert to Slack, Telegram, email or a webhook the moment it stops responding. It is open source and free to start.