What Is 404 Not Found?
A 404 Not Found is an HTTP status code indicating that the server cannot find the requested URL. It means the page doesn't exist — either it was never created, has been deleted, or the URL is misspelled.
Why It Matters
When you move a domain without setting up redirects, every inbound link and bookmark to the old domain starts returning 404 errors. This means:
- Lost visitors — anyone clicking an old link sees an error page
- Lost SEO — search engines can’t find your content and drop it from results
- Lost trust — 404 pages make your brand look abandoned or broken
This is the exact problem domain forwarding solves. A 301 redirect from the old domain catches all that traffic and sends it to the right place.
How It Works
When a browser requests a URL that doesn’t exist on the server:
- Browser requests
https://example.com/deleted-page - Server looks for the page, can’t find it
- Server responds with
404 Not Found - Browser displays a “Page Not Found” error
Unlike redirect status codes (3xx), a 404 doesn’t include a Location header. The browser has nowhere to go.
404 vs Setting Up Redirects
| Scenario | Without Redirect | With Domain Forward |
|---|---|---|
| Old domain expires | 404 → visitors lost | 301 → visitors reach new site |
| URL structure changes | 404 → SEO lost | 301 with path forwarding → SEO preserved |
| Brand migration | 404 → broken bookmarks | 301 → everything works |
How Domain Forward Prevents 404s
When you forward a domain through Domain Forward, every request to the old domain gets a 301 redirect to your new destination — no 404s. With path forwarding enabled, old.com/blog/post redirects to new.com/blog/post instead of just new.com, keeping deep links alive.
Related Terms
Related Features
Frequently
asked questions
A few 404s are normal and won't hurt you. But if important pages that have backlinks and search rankings start returning 404, you'll lose that SEO value permanently. A 301 redirect preserves up to 99% of it.
A 404 means 'not found' — the page might come back. A 410 means 'gone permanently' — the page is deleted and won't return. Search engines drop 410 pages from their index faster.
Set up 301 redirects from every old URL to its corresponding new URL. For domains, use a service like Domain Forward with path forwarding enabled so old-domain.com/page redirects to new-domain.com/page instead of returning a 404.
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