Google’s AI Overviews Prefer AI‑Generated Sources, Creating a Feedback Loop
Ahrefs’ analysis of 1.9 M URLs cited in Google AI Overviews shows 87.8 % contain AI‑generated content, while only 8.6 % are purely human‑written. This bias suggests the search engine’s summary feature is feeding off an ecosystem that increasingly relies on AI, amplifying machine‑generated content across the web.