Authentication Providers · reliability comparison
Auth0 vs Firebase Authentication: which is more reliable? (2026)
Firebase Authentication is more reliable than Auth0, scoring 100.0 vs 33.9 out of 100. Over the last 90 days Auth0 reported 6 incidents and Firebase Authentication reported 0, with effective uptime of 92.39% and 100% respectively.
Data updated Nov 1, 2026 · How we score
VS
| Metric | Auth0 | Firebase Authentication |
|---|---|---|
| Reliability score | 33.9 | 100.0 |
| Rank (authentication providers) | #8 | — |
| Uptime (90 days) | 92.39% | 100% |
| Incidents (90 days) | 6 | 0 |
| Partial / major outages | 3 | 0 |
| Avg time to resolve | 2d 12h | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Auth0 and Firebase Authentication differ
- Firebase Authentication reported no incidents in the last 90 days, while Auth0 reported 6.
- Auth0 had 3 partial or major outages, compared with 0 for Firebase Authentication.
90-day uptime
Auth0
Firebase Authentication
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Auth0 incidents
- MaintenanceOct 27, 2026 · resolved (duration not published)
- MaintenanceOct 27, 2026 · resolved in <1m
- Partial outageOct 23, 2026 · resolved in 356d 18h
Elevated Errors on Multiple Public Cloud Environmentsofficial update ↗
- Partial outageOct 23, 2026 · resolved in <1m
- Degraded performanceSep 15, 2026 · resolved in 311d 13h
- Degraded performanceSep 3, 2026 · resolved in 362d 21h
Recent Firebase Authentication incidents
No incidents reported by Firebase Authentication in the last 90 days.
Other authentication providers to consider
- Ory Network · #1 · 99.99% uptime
- Kinde · #2 · 99.96% uptime
- Frontegg · #3 · 99.97% uptime
- Stytch · #4 · 99.82% uptime
See the full most reliable authentication providers ranking →