To being answering this question it is important to understand the definition of what a 301 redirect actually is. A 301-redirect actually refers to the status code of the page, so what is the current state of that specific individual URL (is it live, is there an error etc). The table below highlights the definition of what a 301 page actually refers to:
|Status Code||Brief Explanation||Definition||Type|
|301||Moved Permanently||A status code of 301 tells a client that the resource they asked for has permanently moved to a new location. The response should also include this location. It tells the client to use the new URL the next time it wants to fetch the same resource.||Redirection|
Having understood what a 301 page is, the next stage is to understand the benefits of utilising a 301 redirect on an aged domain. An aged domain generally applies to a website that has been active for a number of years. Having been active for a long time, it is probably a good assumption that over the years this specific domain has built up some authority; either through the content it’s produced, current keyword rankings, external links pointing towards its site, number of active visits and branding. What a 301 redirect essentially does is transfer this authority from the aged domain to the new domain, so that this value can be added to your new domain. Also, it will automatically forward the visitors looking for the aged domain to the new site, and alert them that the previous website has been changed to a new and improved site.
It is worth noting that using 301 redirects to trick and manipulate website rankings is not a recommended strategy. Many SEO companies and websites think that buying domain names to simply apply a 301 redirect will benefit their primary website. This is not and will never be the case, only use a 301 redirect in the right and ethical way.