turborepo-diagnostics = { path = "crates/turborepo-diagnostics" }

title="scan"

description="Enable the fastest defaults for your Turborepo."

title: scan

description: API reference for the `turbo scan` command

summary: Reference for the `turbo scan` command that interactively enables performance optimizations.

```bash title="Terminal"

turbo scan

You'll be taken through a short series of steps to enable the fastest settings for your Turborepo. These optimizations include:

- **Git FS Monitor**: `turbo` leans on Git to do file change discovery. Since we have to wait for `git` to tell us about changes, we can use [Git's built-in filesystem monitor](https://git-scm.com/docs/git-fsmonitor--daemon) to get those notifications sooner.

- **Turborepo Daemon** (deprecated for `turbo run`): Turborepo's daemon is no longer used for `turbo run`. It is still used by `turbo watch` and the Turborepo LSP.

- **Remote Caching**: While Turborepo can cache your work locally, it can also share a cache across all of your machines. Enabling [Remote Caching](/docs/core-concepts/remote-caching) makes your caching **multiplayer**, ensuring that you, your teammates, and your CI machines, never do the same work twice.

- **Check `turbo` version**: We're always working towards making `turbo` better. To ensure you are using the latest version of Turborepo, we'll check your version and remind you to install `latest` if you aren't using it yet.

- **Check for Turborepo LSP**:

Visit the [VSCode Extension Marketplace](https://marketplace.visualstudio.com/items?itemName=Vercel.turbo-vsc) and install the Turborepo LSP extension for your IDE.