Definition
3xx Status Codes are HTTP response codes that indicate a redirection. When a server returns a 3xx code, it informs the client—whether a browser or a search engine crawler—that the requested resource has moved to a different URL. The most common examples include 301 for permanent redirects and 302 for temporary redirects.
What is it?
3xx Status Codes are part of the HTTP protocol and serve to manage how content is accessed when URLs change. A 301 status code tells the client that the resource has permanently moved to a new location, signaling search engines to update their indexes accordingly and transfer most of the original page’s link equity. On the other hand, a 302 code indicates a temporary move, meaning that the original URL should still be considered the primary source once the temporary change is reversed. Other codes in the 3xx range, such as 303, 307, and 308, provide additional nuances for redirection behavior. These codes help maintain a smooth user experience by ensuring that visitors are seamlessly directed to the intended content, even when URLs are altered.
How is it used?
Webmasters employ 3xx Status Codes during website updates, redesigns, or maintenance periods to manage URL changes without disrupting user experience. Proper use of 301 redirects helps preserve SEO value during site migrations by transferring ranking signals to the new URLs. Meanwhile, 302 redirects are used for temporary changes without permanently affecting search engine indexing. Regular monitoring of redirection patterns is essential to avoid redirect chains or loops that can negatively impact site performance and search engine crawling.
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