Dash0 Raises $110M Series B at $1B Valuation

Jul 6, 2026

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Spam filter metrics

Spam filters keep unwanted telemetry out of Dash0, but until now they worked silently. Each spam filter now comes with a chart showing exactly how much data it dropped over time, so you can tell at a glance which filters are earning their keep and which ones have gone stale.

See how much your spam filters catch

Open the spam filter settings and every filter shows its own time series of dropped signals. Log records, spans, metric data points, and web events are each counted separately. A filter that has been quiet for weeks is a candidate for cleanup, while one that suddenly spikes might be telling you that a service started misbehaving upstream. Either way, you no longer have to guess whether a filter is actually matching anything before you edit or delete it.

Under the hood, every dropped signal is now attributed to exactly the filter that matched it.

You can alert on it too

These charts are powered by the dash0.spam_filters.{logs,metric_data_points,spans,web_events}. They are metrics we record for you and you do not pay for, and you (or Agent0) can use them to create your check rules.

Creating check rules about spam filters