Definition
The HTTP 308 Permanent Redirect status code indicates that the requested resource has been permanently moved to a new URL specified by the Location header. Unlike some other redirect status codes, the 308 ensures that the request method and body remain unchanged during the redirection process.
User Cases
The 308 Redirect is commonly used when a resource has been permanently moved to a new URL, and it’s crucial that the original request method, such as POST, is preserved. This is particularly useful in scenarios involving form submissions or API requests where changing the method could result in data loss or unintended behavior.
Why It Matters for SEO
For SEO, using a 308 Redirect is important when you want to ensure that the search engines and users are directed to the new URL without altering the request method. This helps maintain the integrity of the original request and ensures that the link equity and ranking signals are passed to the new URL, thus preserving the SEO value of the original resource.
Related Concepts
Related concepts include other HTTP status codes like 301 Moved Permanently, which also indicates a permanent redirect but may not preserve the request method, and 302 Found, which is used for temporary redirects. Understanding the differences between these status codes is crucial for effective web management and SEO strategy.