Every site eventually serves 404 pages, because links rot, people mistype, and pages get removed. A useful 404 confirms the visitor is still on your site, explains what happened without jargon, and offers a route onward. The common alternative, redirecting every missing page to the homepage, is worse than a good error page and creates problems of its own.
Where they come from
- Mistyped addresses, including from printed materials and vehicle signage.
- Old links elsewhere on the web pointing at pages you moved or removed, often years ago.
- Your own broken internal links, which are more common than most owners realise, particularly after a redesign.
- Removed content, such as a service you no longer offer or a job posting that closed.
- Search engines still holding old URLs for a period after a change.
The last three are worth distinguishing from the first two, because they are your doing and therefore fixable at the source.
What a useful 404 page contains
Evidence they are still on your site
Your header, navigation, and branding. A bare server error page looks like the site is broken or gone, and some visitors will simply leave rather than try again.
A plain explanation
"This page does not exist" is fine. "404 Not Found" is a status code, not an explanation. Avoid blaming the visitor, since most arrive through no fault of their own.
A route onward
Links to your main sections, a search box if you have one, and the pages people most often want. This is the part that determines whether the visit survives.
Your phone number
Frequently omitted and disproportionately valuable. Someone who hit a dead end while trying to reach you should not have to navigate to find a contact method.
Restraint with the joke
A light touch is fine. An elaborate one is not, because a proportion of visitors arriving here are already mildly frustrated, and being entertained is not what they came for.
Why redirecting everything to the homepage is wrong
It is a common instinct and it fails on two counts.
It confuses the visitor. Someone who clicked a link about a specific service and landed on a generic homepage does not conclude that the page moved. They conclude something went wrong and frequently leave.
Search engines treat it as a soft error. Mass redirection of missing pages to the homepage is generally recognised as such rather than as a genuine equivalent, so it does not preserve the value of the original page and can create its own reporting noise.
The correct handling is specific: redirect a moved page to its actual replacement, and let genuinely missing pages return a proper 404 with a helpful page attached.
410 and when to use it
Worth knowing though rarely essential. A 404 says the page is not found; a 410 says it is deliberately gone. For content you have removed permanently and do not intend to replace, a 410 signals that clearly.
In practice the difference is modest for most small sites, and a well-handled 404 is entirely acceptable. Do not let this become a project.
Monitoring, which is the part that matters
The page itself is a courtesy. The real work is finding out which URLs are producing errors and fixing the causes.
- Search Console reports pages returning errors that Google encountered, including ones you have forgotten existed.
- Analytics can record 404 views as events, which shows both the missing URL and where the visitor came from.
- A periodic crawl of your own site finds internal broken links, which are entirely within your control and often numerous after a redesign.
Then act on the pattern rather than the individual case. A URL producing repeated errors from an external link deserves a redirect to the right destination, since someone else is sending you traffic you are currently discarding.
That is the useful reframe: a 404 from an external link is a visitor another site tried to send you. The error page is the safety net, and the redirect is the fix.
Frequently asked questions
What should a 404 page include?
Your normal header and branding so the visitor knows they are still on your site, a plain explanation that the page does not exist, links to main sections or popular pages, a search box if available, and your phone number so anyone trying to reach you is not left navigating.
Should I redirect 404 errors to my homepage?
No. It confuses visitors who expected specific content and reach something generic, and search engines generally treat mass redirection of missing pages to the homepage as a soft error rather than a genuine equivalent, so it does not preserve the original page's value.
What is the difference between a 404 and a 410?
A 404 indicates the page was not found, while a 410 indicates it was deliberately removed and is not coming back. The distinction is useful for permanently deleted content, though for most small sites a well-handled 404 is entirely adequate.
How do I find out which pages are producing 404 errors?
Search Console reports errors encountered by Google including URLs you may have forgotten, analytics can record 404 views as events showing both the missing address and the referring source, and a periodic crawl of your own site surfaces internal broken links.
Are 404 errors bad for SEO?
Ordinary 404s for pages that genuinely no longer exist are normal and expected. The problems arise from broken internal links, and from external links pointing at pages you moved without redirecting, since those discard traffic another site is trying to send you.
Should a 404 page be funny?
A light touch is fine, but restraint is sensible. A proportion of visitors arriving on an error page are already mildly frustrated and are looking for a route onward rather than entertainment, so the humour should never delay the useful content.
West Coast Media Solutions Inc. builds websites for businesses across Canada. Conversion research is heavily context dependent and widely misquoted; where we describe a principle rather than citing a figure, that is deliberate.
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