Baseline Features

As part of the Best Practices suite of audits in Lighthouse, DevTools tells you the Baseline status of features used on the current page.

This is a diagnostic audit

This audit provides the following information:

• The web feature ID (from the web-features package), linked to the web feature ID's entry on webstatus.dev.
• The Baseline status, either Limited availability, Newly available, or Widely available.
• Where one occurrence of the feature's usage was found in the site's source code.

The audit also gives you information about web features used in third-party scripts, and any active extensions.

Resources

• Source code for the Baseline Features audit
• Baseline on the WebDX Community Group site
• Baseline on web.dev