Google updated its Search spam policies on May 15, 2026, explicitly extending existing spam rules to cover attempts to manipulate its generative AI search features — AI Overviews and AI Mode. The change is live in Google’s official spam policies documentation at Google Search Central, and was reported across multiple outlets including Gizmodo and Let’s Data Science.

The updated introductory language now reads: “In the context of Google Search, spam refers to techniques used to deceive users or manipulate our Search systems into featuring content prominently, such as attempting to manipulate Search systems into ranking content highly or attempting to manipulate generative AI responses in Google Search.” The clause covering generative AI responses is new.

What Changed

The policy enumerates specific prohibited tactics now explicitly extended to AI search contexts:

  • Using generative AI to mass-produce low-value pages targeting AI Overview appearance
  • Cloaking content to show different versions to Googlebot versus users
  • Abusing expired trusted domains to game AI retrieval signals
  • “Recommendation poisoning” — structuring biased best-of content to cue AI-generated product or service recommendations

Enforcement mirrors traditional spam enforcement: automated detection plus human review, with penalties including rank demotion or removal from search results.

What This Means for Practitioners

The GEO (generative engine optimization) space has been growing fast as publishers and agencies try to engineer their way into AI Overviews citations. This policy update makes clear where Google’s line is: legitimate optimization (creating genuinely useful, well-structured, expert content) is fine; deliberately attempting to game the AI retrieval layer is now officially spam.

This isn’t a warning shot — it’s a policy update, which means Google’s automated systems have explicit authority to act on it now. The timing matters too: Google simultaneously expanded the link footprint inside AI Overviews last week, increasing the traffic value of appearing in AI responses. More value in the target means more incentive to manipulate, and Google has moved to get ahead of it.

What to Do Now

Audit any GEO work in your client portfolio. Ask: is this content designed to be genuinely useful to readers, or is it engineered specifically to match AI retrieval patterns? The former is fine. The latter now carries real penalty risk.

If any client is paying a third-party for “AI Overview optimization” or “GEO services,” find out exactly what tactics are being used before the next reporting cycle. Mass-produced AI content, recommendation-baiting listicles, and anything that looks like it’s optimizing for AI citation rather than user value should be reconsidered.

For clients not yet affected, this is also an opportunity: sites doing solid E-E-A-T work and building genuine authority are the ones that benefit when manipulative content gets downweighted from AI responses.

Google has not announced a specific enforcement update or spam action sweep alongside this policy change — the change is to the policy framework, not a confirmed algorithmic rollout. But given that the policy is now explicit, enforcement can follow at any time.

Primary source: Google Search Central — Spam Policies

Coverage: Gizmodo · Let’s Data Science · Outrank