Google has warned websites they will be penalized for hosting marketing content designed to exploit search rankings, regardless of whether they created or outsourced the material. The crackdown on so-called “parasite SEO” targets websites that leverage their search rankings to promote unrelated content, such as news sites hiding shopping coupon codes or educational platforms publishing affiliate marketing material.

Chris Nelson from Google’s search quality team said the policy applies even when content involves “white label services, licensing agreements, partial ownership agreements, and other complex business arrangements.” The move follows Google’s March announcement targeting site reputation abuse, which gained attention after Sports Illustrated was found publishing AI-generated product reviews through third-party marketing firm AdVon Commerce.