What does 404 error page mean?
HTTP 404 means that the server cannot find the requested resource. A helpful error page provides guidance while still returning the correct error status.
AN EXAMPLE IN PRACTICE
Where you might encounter it
An old product URL is no longer available. The error page explains this and offers search or navigation. If there is a suitable replacement, a targeted redirect may be more appropriate.
From NetzTurm Decode. Clear explanations with historical context.