Gatsby

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Quick Start

Add 404 Page

Adding a 404 page is easy. Simply create a page that matches /404*. Most often you’ll just want to create a React component page at pages/404.js.

Gatsby ensures that your 404 page is outputted as 404.html as many static hosting platforms default to using this as your 404 error page. If you’re hosting your site another way, you’ll need to setup a custom rule to serve this file for 404 errors.