Search engine optimisation glossary (0-9)

ABCD – EFGH – IJKL – MNOP – QRST – UVWXYZ – 0-9

301
A form of URL redirection that allows a website to inform visitors that the website once at the current URL has moved to a different address.

404
A 404 error is a common website error message that indicates a webpage cannot be found. It may be produced when a user clicks an outdated (or “broken”) link or when a URL is typed incorrectly in a web browser’s address field.

ABCD – EFGH – IJKL – MNOP – QRST – UVWXYZ – 0-9