Spam filters now emit dropped-data metrics

Spam filters now come with metrics showing exactly how much data they drop over time. Each spam filter displays a time series of dropped signals, with log records, spans, metric data points, and web events counted separately.

Features

• Visibility into filter effectiveness: Open spam filter settings to see how much data each filter has dropped over time.
• Identify stale filters: Filters quiet for weeks are candidates for cleanup.
• Alert on trends: Create check rules using dash0.spam_filters.{logs,metric_data_points,spans,web_events} metrics to alert on sudden spikes or changes in filter activity.
• No cost: These metrics are recorded automatically and do not count toward your bill.