A 301 redirect is the HTTP response status code used for permanent URL redirection in order to forward traffic from old URLs to new ones. This helps search engines rank all of the addresses based on the domain authority and direct traffic to the right address without any effort from visitors.
When you switch all your website content from one URL to another - say, visitor-analytics.io/blog to blog.visitor-analytics.io, you will want to let everyone know about your new address and redirect them properly.
And by everyone, we mean browsers, search engines, and visitors.
Bing and Google recommend using a 301 redirect to permanently change the URL of a page as it is shown in search engine results to another URL. This will allow you to send the search engine crawlers and website users to the new URL instead of the one they originally requested.
In simple terms, this works a lot like a dialog. When someone searches for your old address, your 301 redirects will say, “This page was permanently moved. Here’s the new address. Come visit." Search engines and browsers will respond, “Awesome! Let me redirect the visitor to the right location!”
Therefore, a redirect will help you redirect visitors to the right location without the effort of typing the new link, maintaining the search ranking when you change URLs and domain authority.
Why should you use a 301 redirect?
Using a 301 redirect helps you maximize domain authority by associating common conventions with the same URL and keep your search engine ranking when you create a new website.
How to use a 301 redirect: