Is Sentry Down?

No, Sentry SDKs are designed to fail silently. If Sentry's ingestion endpoint is unreachable, the SDK will drop or buffer events without affecting your application's performance or stability. Your application continues running normally, you just lose error visibility temporarily.

Most Sentry SDKs have a limited local buffer and will retry sending events. However, during an extended outage, the buffer fills up and new events are dropped. Events that occurred during the outage period will not appear in Sentry. Your application logs are the best fallback for this period.

Use an independent uptime monitoring service like FlareWarden to monitor Sentry's availability. Configure alerts through a non-Sentry channel (like email or Slack) so you know immediately when Sentry is down and can switch to checking application logs directly.

Yes, Sentry's performance monitoring, session replays, and profiling all use the same ingestion pipeline. During an outage, all of these features will stop receiving data. Performance baselines may show gaps for the outage period in your dashboards once service is restored.