404 Error

A 404 error is an HTTP status code indicating that the requested resource could not be found on the server. It's one of the most common error messages users encounter when browsing the web.

What It Means

When a browser requests a page that doesn't exist, the server responds with a 404 status code, typically displaying a "Page Not Found" message.

Common Causes

  • Broken or mistyped URLs
  • Deleted or moved pages
  • Incorrect internal links
  • Outdated bookmarks

Best Practices

Create custom 404 pages that:

  • Clearly explain the error
  • Provide navigation back to the homepage
  • Include search functionality
  • Suggest related or popular pages

Example Custom 404 Page

jsx
export default function Custom404() {
  return (
    <div>
      <h1>404 - Page Not Found</h1>
      <p>Sorry, the page you're looking for doesn't exist.</p>
      <Link href="/">Go back home</Link>
    </div>
  )
}