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Definition

403 Forbidden

A 403 Forbidden means the resource exists but the server is refusing access, whether due to permissions or a security rule. It becomes an SEO problem when a firewall or CDN returns 403 to legitimate crawlers and quietly deindexes pages.

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Related terms

HTTP status code

A three-digit code a server returns to summarize how a request went.

404 error

A status code meaning the requested page could not be found.

User agent

A string identifying the client making an HTTP request.

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