> ## Documentation Index
> Fetch the complete documentation index at: https://tbd-6fc993ce-mintlify-add-deploy-button-docs-27400.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Standby Mode

Kernel browsers enter standby mode during periods of inactivity. When a browser goes into standby mode, the browser's state remains the same but incurs zero usage costs.

Kernel browsers automatically enter standby when no CDP or Live View client is connected for `five seconds`. After it enters standby, the browser's [timeout](/browsers/termination#automatic-deletion-via-timeout) countdown begins.

<Info>
  See [here](/browsers/termination) to learn about destroying browsers.
</Info>