A 404 error means the web server couldn’t find any page at the specific address that was requested. It’s not a sign anything is broken with the internet or the whole website, just that address, right now, doesn’t point to a real page.

Why 404 errors happen on your own website

The most common causes are a page being deleted or moved without a redirect set up, a URL being typed or linked incorrectly somewhere, or an old link pointing to content that used to exist but no longer does. Search engines and other sites can also keep pointing to a URL long after you’ve changed it, generating 404s for visitors who arrive through those old links.

Why unresolved 404 errors are worth fixing

A visitor who lands on a 404 page often just leaves, and if search engines regularly encounter 404 errors on links they’ve indexed, it can hurt user experience signals and waste crawl budget that could otherwise go toward pages that actually exist. A steady pattern of unresolved 404s is a real, fixable problem, not just cosmetic.

How to actually fix a 404 error

If a page was intentionally moved or renamed, setting up a 301 redirect from the old URL to the new one preserves both the visitor experience and any accumulated search ranking value. If a page was removed entirely with no direct replacement, redirecting to a relevant category or parent page is usually better than leaving visitors at a dead end. Regularly checking your site for broken internal links, using free tools built for this, catches problems before they accumulate.

Frequently asked questions

Does a 404 error mean the entire website is down?

No, it just means that one specific page address doesn’t currently point to real content; the rest of the site is typically unaffected.

What’s the best fix when a page is permanently removed?

Setting up a 301 redirect to a relevant existing page is generally better than leaving visitors at an unresolved dead end.

Can unresolved 404 errors hurt SEO?

Yes, a pattern of unresolved 404 errors can waste search engine crawl budget and create a poor experience for visitors arriving through old links.

For more practical website guidance, see Talmyn’s Tech & AI Evolution desk.