HTTP 301 Redirect

HTTP 301 is a status code that indicates a permanent redirect, where a web page or resource has been moved to a new URL permanently. It instructs browsers and search engines to update their links and indexes to the new location, ensuring users and crawlers are automatically directed to the correct destination. This is a fundamental part of HTTP protocol for managing URL changes and maintaining SEO value.

Also known as: 301 Redirect, Permanent Redirect, HTTP 301, 301 Moved Permanently, 301 Status Code

Why learn HTTP 301 Redirect?

Developers should use HTTP 301 redirects when permanently moving content to a new URL, such as during website restructuring, domain changes, or URL optimization, to preserve search engine rankings and user experience. It is essential for SEO because it transfers link equity to the new page, preventing broken links and ensuring smooth navigation. Common use cases include migrating from HTTP to HTTPS, consolidating duplicate pages, or rebranding with a new domain.

Learning Resources

• docs: MDN Web Docs: HTTP 301
• docs: Google Search Central: Redirects
• video: HTTP Status Codes Explained (Video)
• tutorial: W3Schools: HTTP Status Messages
• tutorial: SitePoint: A Guide to HTTP Status Codes