> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mezmo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Blackhole

> A Destination that drops all data sent to it, useful for testing Pipeline data processing in a simulation without billable egress.

## Description

The Blackhole Destination drops all data sent to it. This is useful when you are building as Pipeline and want to test the data processing in [a simulation](/telemetry-pipelines/simulate-pipeline-data-flows) without sending the data to a Production Destination.

<Note>
  Data that is sent to a Blackhole Destination isn't added to your billable egress volume.
</Note>