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    0.2.2 • Public • Published

    Nuxt Web Vitals

    Web Vitals: Essential module for a healthy Nuxt.js

    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 module will gather those metrics on each page view, and send them to a provider using either Navigator.sendBeacon() or fetch()


    # yarn
    yarn add --dev @nuxtjs/web-vitals
    # npm
    npm install --save-dev @nuxtjs/web-vitals

    Add @nuxtjs/web-vitals to the buildModules section of your nuxt.config.js

    export default {
      buildModules: [

    ⚠️ If you are using Nuxt < v2.9 you have to install the module as a dependency (No --save-dev or --dev flags) and use modules section in nuxt.config.js instead of buildModules.


      webVitals: {
        // provider: '', // auto detectd
        debug: false,
        disabled: false


    Google Analytics

    Report WebVitals to GA

    Create a GA property and get trackingID

    Either provide GOOGLE_ANALYTICS_ID environement variable or set inside nuxt.config:

    (Top level is supported for backward compatibility as fallback)

    export default {
      webVitals: {
        ga: { id: 'UA-XXXXXXXX-X' }

    Behavior > Events > Overview > Event Category > Event Action

    Events Actions

    Vercel Analytics

    Report WebVitals to Vercel

    Works without configuration

    Basic logger

    Report WebVitals to Console

    Output metrics to the console insead of sending them to a remote provider

      webVitals: {
        provider: 'log',
        debug: true, // debug enable metrics reporting on dev environments
        disabled: false

    ⚠️ this provider does not send WebVitals trough network, issues with navigator extensions can not be deteced with this method.

    Logging to custom api

    Report WebVitals to a custom api endpoint

    export default {
      webVitals: {
        provider: 'api',
        api: { url: '/api/web-vitals' }
        debug: true // debug enable metrics reporting on dev environments

    Example body:

      href: 'http://localhost:3000/',
      name: 'LCP',
      value: 303.599,
      rating: 'good',
      delta: 303.599,
      entries: [
          name: '',
          entryType: 'largest-contentful-paint',
          startTime: 303.599,
          duration: 0,
          size: 5698,
          renderTime: 303.599,
          loadTime: 0,
          firstAnimatedFrameTime: 0,
          id: '',
          url: ''
      id: 'v3-1669725914225-9792921995831',
      navigationType: 'reload'




    npm i @nuxtjs/web-vitals

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    • antfu
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