What is 404 error?
Also called: Page not found, Broken link
The short answer
A 404 error means the server could not find the requested page; it happens when a page is deleted, moved without a redirect or a link is mistyped.
404 error, explained
A few 404s are normal. Broken internal links and missing redirects for moved pages are not, and a helpful 404 page gets lost visitors back on track.
Questions people ask about 404 error
What is 404 error?
A 404 error means the server could not find the requested page; it happens when a page is deleted, moved without a redirect or a link is mistyped.
Related terms
A 301 redirect permanently sends visitors and search engines from an old URL to a new one, passing most of the old page's ranking signals along.
Broken linkA broken link points to a page that no longer exists or never did, sending visitors to an error; they build up as pages move without redirects.
SEOSEO is the practice of making a website easier for search engines to crawl, understand and rank, so it appears for the searches its audience actually makes.
KeywordA keyword is a word or phrase people type into a search engine; SEO matches pages to the keywords their audience uses.
Part of the Web Encyclopedia by Apex Flow Digital. Definitions are general knowledge, kept current, with no invented statistics.