404 Not Found

The HTTP 404 Not Found client error response code indicates that the server can't find the requested resource. Links which lead to a 404 page are often called broken or dead links, and can be subject to link rot.

A 404 status code does not indicate whether the resource is temporarily or permanently missing. But if a resource is permanently removed, a 410 (Gone) should be used instead of a 404 status.

Status

404 Not Found

Custom error pages

Many web sites customize the look of a 404 page to be more helpful to the user and provide guidance on what to do next. Apache servers can be configured using an .htaccess file and a code snippet like the following example.

ErrorDocument 404 /notfound.html

For an example of a custom 404 page, see MDN's 404 page.

Specifications

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

See also

• 410

• Wikipedia: HTTP 404