A 301 redirect functions as a permanent redirection from one web address (URL) to another. This type of redirect not only guides users to the new destination but also preserves the SEO value that the original URL held, transferring what's often referred to as "link juice" to the new location. By employing 301 redirects, you ensure that both users and search engines seamlessly transition to the updated content while retaining the established search engine rankings, reinforcing the continuity of your website's SEO efforts.