Technical
404 error
Also known as: page not found, dead link
Understanding the term
A few 404 errors are normal and do not penalise a website. What does cost you is a page that used to receive traffic disappearing without a redirect.
A useful 404 page does more than announce the error: it offers search, the main pages and a way to get in touch. A lost visitor is better than a visitor who has left.
Related terms
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