vercel/next.js / errors / no-sync-scripts.mdx

---

title: No Sync Scripts

Prevent synchronous scripts.

Why This Error Occurred

A synchronous script was used which can impact your webpage performance.

Possible Ways to Fix It

Script component (recommended)

import Script from 'next/script'

function Home() {
  return (
    <div class="container">
      <Script src="https://third-party-script.js"></Script>
      <div>Home Page</div>
    </div>
  )
}

export default Home

Use async or defer

<script src="https://third-party-script.js" async />
<script src="https://third-party-script.js" defer />

Useful Links

• Efficiently load third-party JavaScript