Prefer
next/script
component when using the inline script for Google Analytics.
An inline script was used for Google analytics which might impact your webpage's performance.
If you are using the gtag.js script to add analytics, use the next/script
component with the right loading strategy to defer loading of the script until necessary.
import Script from 'next/script'
function Home() {
return (
<div className="container">
<!-- Global site tag (gtag.js) - Google Analytics -->
<Script
src="https://www.googletagmanager.com/gtag/js?id=GA_MEASUREMENT_ID"
strategy="afterInteractive"
/>
<Script id="google-analytics" strategy="afterInteractive">
{`
window.dataLayer = window.dataLayer || [];
function gtag(){window.dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'GA_MEASUREMENT_ID');
`}
</Script>
</div>
)
}
export default Home
If you are using the analytics.js script to add analytics:
import Script from 'next/script'
function Home() {
return (
<div className="container">
<Script id="google-analytics" strategy="afterInteractive">
{`
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-XXXXX-Y', 'auto');
ga('send', 'pageview');
`}
</Script>
</div>
)
}
export default Home
If you are using the alternative async variant:
import Script from 'next/script'
function Home() {
return (
<div className="container">
<Script id="google-analytics" strategy="afterInteractive">
{`
window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
ga('create', 'GOOGLE_ANALYTICS_ID', 'auto');
ga('send', 'pageview');
`}
</Script>
<Script
src="https://www.google-analytics.com/analytics.js"
strategy="afterInteractive"
/>
</div>
)
}
export default Home