301 Redirect

How 301 Redirect Works

A 301 redirect is an HTTP status code that tells browsers and search engines: "This resource has permanently moved to a new location." When Googlebot encounters a 301, it follows the redirect to the destination URL and updates its index to reflect the new location, transferring most of the ranking signals (PageRank, link equity) from the old URL to the new one.

Why 301 Redirect Matters for B2B Marketing

The main use cases for 301 redirects are: (1) renaming a URL or changing URL structure, (2) consolidating duplicate content to a single canonical URL, (3) site migrations (domain changes, HTTPS upgrades, www to non-www), (4) retiring old service pages and redirecting to relevant replacements, and (5) redirecting deleted content to topically relevant pages. The key principle is topical relevance — a 301 from an old service page to a topically related new service page transfers significant ranking signals; a 301 from a specific page to the homepage or an irrelevant page transfers minimal value (Google treats these as "soft 404s").

301 Redirect: Best Practices & Strategic Application

PageRank transfer via 301 redirects was once estimated at 85-90% (a "tax" for redirecting). Google has since indicated that properly implemented 301 redirects pass "all" PageRank, though in practice there is some dampening effect through redirect chains (each additional hop reduces transferred equity). Redirect chains of more than 2 hops should be collapsed to direct redirects.

Agency Perspective: 301 Redirect in Practice

Common 301 redirect mistakes: creating redirect loops (A redirects to B which redirects back to A), redirect chains (A→B→C→D rather than A→D), redirecting all old URLs to the homepage during a site migration (losing all URL-specific authority), and forgetting to update internal links to point directly to destination URLs (eliminating the redirect hop).