924 B
924 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Defer Non-Critical Third-Party Libraries | MEDIUM | loads after hydration | bundle, third-party, analytics, defer |
Defer Non-Critical Third-Party Libraries
Analytics, logging, and error tracking don't block user interaction. Load them after hydration.
Incorrect (blocks initial bundle):
import { Analytics } from "@vercel/analytics/react";
export default function RootLayout({ children }) {
return (
<html>
<body>
{children}
<Analytics />
</body>
</html>
);
}
Correct (loads after hydration):
import dynamic from "next/dynamic";
const Analytics = dynamic(() => import("@vercel/analytics/react").then((m) => m.Analytics), {
ssr: false,
});
export default function RootLayout({ children }) {
return (
<html>
<body>
{children}
<Analytics />
</body>
</html>
);
}