301 Redirect

A 301 redirect is an HTTP status code indicating that a page has permanently moved to a new URL. It instructs both browsers and search engines to use the new address going forward. For link building, 301 redirects are essential for preserving link equity when URLs change. When you restructure your site, rebrand, or consolidate pages, 301 redirecting old URLs to their new equivalents ensures that existing backlinks continue passing value to your site. Without proper 301 redirects, backlinks pointing to old URLs result in 404 errors, and the accumulated link equity is lost. Always audit redirects after site migrations to protect your backlink investment.