Let's look at a simple example you have a website on page "A" which has been moved or erased. And is not accessible from the same website address.
To avoid a 404 error page on your website, you should create a redirection. This ensures that web visitors that have saved your web page in their favorites are sent to a similar page on your website, instead of being lost in cyberspace.
A redirection allows you to automatically send a visitor who tries to look at the old URL address of page A to the page of your choice.
There are two reasons to do this:
- your website visitors are not landing on an error page but on alternate content that you judge pertinent
- any work done on your SEO and referencing is not erased, but you "transfer" this work to the page of your choice