For some reason I got the following error : Unhandled Runtime Error SyntaxError: Invalid or unexpected token I had to change the code to : <Script strategy= "lazyOnload" >{` window .dataLayer = window .dataLayer || []; function gtag ( ) {dataLayer.push( arguments );} gtag( 'js' , new Date ()); gtag( 'config' , '${process.env.NEXT_PUBLIC_GOOGLE_ANALYTICS}' ); `} </Script> to fix the error. I could have said that your code has an issue but then your video did not show any issues.