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

Last updated: April 16, 2026

Investigate Failed Alert Checks

The failed checks view provides information about all the failed checks and their details, as shown in the video below.

Investigate a Failed Check

Select a failed check to open its details view. The details view shows a timeline chart of the check status and provides drilldown cards to the underlying telemetry.

Dash0 automatically determines which telemetry types are relevant based on the metrics used in the check rule and renders drilldown cards accordingly:

  • Spans — displayed when the check uses span-based metrics (e.g., dash0.spans or dash0.spans.duration). Filters extracted from the PromQL expression are applied to provide a more precise view.
  • Logs — displayed when the check uses log-based metrics. Extracted filters are applied automatically.
  • Web Events — displayed when the check uses web event metrics. Extracted filters are applied automatically.
  • Metrics — lists all other metrics used in the check that do not fall into one of the above categories.
Info

Not every filter from a PromQL expression can always be applied to the drilldown cards. Dash0 applies as many filters as possible to narrow down the results without creating false negatives. Some false positives, however, are possible for very complex PromQL expressions that use conflicting filters for the same signal.