Redirection is when a URL is moved from one location to another, and there are two types: permanent (301) and temporary, or 302. This is usually necessary when we have a new page that will replace an old one and we need to signal to search engines which URL to consider now.

On a website , it's a technique that can be used to redirect visitors to a page different from the one they requested, usually because the requested page is unavailable, which is called a 404 result.

Often, web users website of a company whose name has been changed or acquired by another company.

 What is a redirect?

Also known as URL redirection or call forwarding, it's a World Wide Web technique for giving a website a new URL structure without any URLs being inaccessible.

When the web browser attempts to access the redirected URL, it opens a page with a different URL. Domain redirection also occurs when all pages on a URL domain are redirected to another domain, for example, when wikipedia.com and wikipedia.net are automatically redirected to wikipedia.org .

What is the purpose of redirection?

The overall goal is to drive traffic from one page to another. This happens for several reasons.

URL redirection is done for several reasons: 

•  to shorten the URL;
•  to prevent broken links when moving web pages;
•  to allow domain names with multiple names that contain the same owner to point to a single website;
•  for direct navigation within and outside of a website;
•  to protect privacy; and 
•  for hostile purposes, such as phishing attacks or spreading malware.

Redirecting is a widely used SEO strategy search engines understand that a web address or page now has a new path.

How does the transfer work?

Through HTTP, redirection is triggered by a server that sends a special redirect response to a request. The responses have status codes that begin with 3 and a location header that contains the URL to which the user will be redirected.

hosting providers have tools to assist with this task.