During website operations, changes in website content and structure are inevitable due to market trends and business needs. Whether it’s site reconstruction, page updates, or site migration, these changes may cause "page not found" issues. 301 Redirect is one of the key tools to resolve such problems. Properly using 301 redirects ensures users are seamlessly redirected to the new page while preventing SEO traffic loss and maintaining website rankings. This article will explain the importance of 301 redirects, how to set them up, and common troubleshooting methods to help you better utilize 301 redirects and avoid website traffic loss.