gatsby-plugin-web-vitals

Web Vitals is an initiative by Google to provide unified guidance for quality signals that are essential to delivering a great user experience on the web.

This plugin sends Web Vitals metrics to Google Analytics.

Install

npm i gatsby-plugin-web-vitals

or

yarn add gatsby-plugin-web-vitals

Usage

// gatsby-config.js
{
  resolve: 'gatsby-plugin-web-vitals',
  options: {
    // The Google Analytics property ID; the reporting code won't be generated without it
    trackingId: 'YOUR_GOOGLE_ANALYTICS_TRACKING_ID',
    // An array with metrics you want to track and send to analytics
    metrics: [`FID`, `TTFB`, `LCP`, `CLS`, `FCP`],
    // Event Category (optional) { string }, default 'Web Vitals'
    eventCategory: 'Performance',
    // Include Web Vitals tracking in development
    // Defaults to false meaning Vitals will only be tracked in production.
    includeInDevelopment: false,
    // Prints metrics in the console when true
    debug: false,
  }
}

Plugin based on nuxt-vitals.