How to Create a Custom 404 Page for Your Hosted Site
A 404 page is what visitors see when they try to access a URL that does not exist on your site. The default browser 404 is ugly and unhelpful. A custom 404 page keeps visitors engaged, reinforces your brand, and can even turn errors into conversions.
Why a custom 404 page matters
- Prevent bounce — A helpful 404 page gives visitors somewhere to go next
- Brand consistency — Even errors should look like your brand
- Guide visitors — Link to your most important pages
- Reduce frustration — A friendly message turns a dead end into a detour
- SEO benefit — Google's guidelines recommend custom 404 pages
How to set a custom 404 with Hostupa
1. Create your 404 HTML
Write a simple HTML page that matches your site's design. Include:
- Your logo and branding
- A friendly message ("Page not found" or "Oops!")
- Links to your homepage, main sections, or contact page
- A search box (optional)
- Your site navigation
Example:
`html
<!DOCTYPE html>
<html>
<head>
<title>Page Not Found — Your Brand</title>
<style>
body { font-family: system-ui; text-align: center; padding: 50px; }
h1 { font-size: 48px; color: #333; }
p { color: #666; }
a { color: #0066cc; }
</style>
</head>
<body>
<h1>404</h1>
<p>Sorry, this page does not exist.</p>
<p><a href="/">Go to homepage</a> | <a href="/contact">Contact us</a></p>
</body>
</html>
`
2. Set it in your project settings
On the Hostupa project detail page, find the "Custom 404 page" setting (available on the Pro plan and above). Paste your HTML or upload the file.
3. Test it
Visit hostupa.com/p/your-slug/nonexistent-page and you should see your custom 404 instead of the default error.
Best practices for 404 pages
Keep it on-brand
Use the same colors, fonts, and layout as the rest of your site. A 404 should feel like part of your website, not a separate error page.
Be helpful, not clever
"Oops! You broke the internet" was funny in 2010. Today, visitors just want to find what they were looking for. Prioritize helpful navigation over humor.
Include key links
- Homepage
- Main product or service pages
- Search functionality
- Contact page
- Popular or recent content
Keep it lightweight
A 404 page should load instantly. Avoid heavy images, videos, or scripts. The visitor is already frustrated — do not make them wait.
Monitor 404s
Use analytics to track which URLs are returning 404s. This helps you: - Find and fix broken links - Identify mistyped URLs - Discover pages that were moved or deleted - Spot crawling issues
404 page examples
Minimal
`
404 — Page not found
[Go home] [Search] [Contact]
`
Helpful
`
We can't find that page
The page at /old-url may have been moved or deleted.
Try one of these instead:
- [Homepage]
- [Products]
- [Blog]
- [Search our site]
`
Conversion-focused
`
Page not found
Looking for something specific? Let us help.
[Search] [Contact support] [Browse products]
`