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The Madison Avenue Field GuideA field guide to marketing & advertising, by Brandon Mina

GlossarySEO & Content301 Redirect

SEO & Content

301 Redirect

A permanent redirect sending users and search engines from an old URL to a new one while passing most ranking signals.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

A 301 redirect is a permanent redirect that sends users and search engines from an old URL to a new one while passing most ranking signals. It is used when pages move, sites migrate or content is consolidated. Search engines eventually replace the old URL with the new one in their index, preserving traffic and links.