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A custom 404 page can explain what happened and give visitors a way forward, but the design alone does not configure the server to return a 404 response. Choose a template you can verify, connect it to your site’s hosting or application, and test the HTTP status as well as the page.
What a 404 page needs to do
HTTP 404 means the server cannot find the requested resource; it does not say whether that absence is temporary or permanent. If content has been permanently removed, MDN identifies HTTP 410 Gone as the distinct status for that case. See MDN’s 404 Not Found reference.
Make the explanation unmistakable: tell visitors the requested page was not found. Then offer useful routes back, such as a home link, site search, or links to relevant sections. A playful visual can make an error feel less abrupt, but MDN cautions: “Feel free to make your 404 page humorous and human, but don’t confuse your visitors as to why they are seeing something unexpected.”
How to choose a free template
There is no verified set of 32 templates here, so this guide does not present an untested list as a curated or licensed collection. GitHub’s error-page-template topic is a discovery index with varied projects and styles—not a verification of functionality, accessibility, compatibility, or reuse rights.
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Before adopting a project, inspect its source and demo, then check:
- Dependencies: Is it plain HTML and CSS, or does it require JavaScript, a framework, external fonts, images, or other assets? Copy required assets along with the page.
- Deployment fit: Can your platform serve the file, or does it require server configuration or application middleware?
- Recovery options: Does it include working links to your home page, search, or useful sections?
- Accessibility and mobile behavior: Test keyboard navigation, contrast, small screens, and reduced-motion preferences. A screenshot cannot establish these qualities.
- Customization and reuse: Replace sample branding and copy, support your needed languages, and read the project’s license before reusing its code or assets.
A visual preview is not a deployable page by itself. Confirm that the markup, assets, and routing needed for the design are actually available.
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Copy-paste HTML starting point
This self-contained example uses no images, external stylesheets, or JavaScript. Change the site name and destination URLs to match your site. It supplies the page content only; configure your platform or server separately so missing routes serve it with an HTTP 404 status.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Page not found | Example Site</title>
<style>
body {
margin: 0;
padding: 2rem;
color: #172033;
background: #f4f6fa;
font: 1rem/1.6 system-ui, sans-serif;
}
main {
max-width: 42rem;
margin: 10vh auto;
padding: 2rem;
background: #fff;
border-radius: 0.75rem;
}
a { color: #0759c7; }
a:focus-visible { outline: 3px solid currentColor; outline-offset: 3px; }
@media (max-width: 36rem) {
body { padding: 1rem; }
main { margin: 2rem auto; padding: 1.25rem; }
}
</style>
</head>
<body>
<main>
<p>Error 404</p>
<h1>We couldn’t find that page</h1>
<p>The address may be incorrect, or the page may have moved.</p>
<p><a href="/">Go to the home page</a></p>
</main>
</body>
</html>Connect the page to your platform
GitHub Pages
Put a file named 404.html in the publishing source for your site. Alternatively, create 404.md with YAML front matter setting permalink: /404.html. Commit the change to the repository’s publishing source. Follow GitHub’s custom 404 page instructions for the current publishing workflow.
Apache
MDN’s Apache example maps a 404 response to a local page with this .htaccess directive:
ErrorDocument 404 /notfound.htmlPlace the target at a path the server can serve for that response, and adapt the path if your file is elsewhere. See MDN’s 404 reference.
Other servers and application frameworks
HttpErrorPages is a project option for generating error pages and adapting them across deployments. Its documentation describes static output and examples for Nginx, Apache HTTPD, Lighttpd, Express, Koa, and Caddy, with customization through templates, configuration, and language definitions. It is not a universal turnkey installation: check the project’s current requirements and follow the instructions for your environment.
Test the response, not just the design
After deployment, request a URL that does not exist and confirm both that the intended page appears and that the response status is 404. A page that looks like an error but is served with a success status is not a correctly configured 404 response. Also check that its navigation links work and that the layout remains usable on a phone and with a keyboard.
Best Value
If a GitHub Pages site returns an unexpected 404
Do not assume the custom page itself is the problem. GitHub’s troubleshooting guidance identifies several possible causes to check:
- GitHub Pages service status
- DNS settings and custom-domain configuration
- Browser cache
- The location and capitalization of
index.html - Files in the configured publishing source
- Repository and publishing conditions
Work through GitHub’s troubleshooting guide for the relevant publishing setup.
Quick Recap
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