Measuring Google AI Overviews: Activation, Source Quality, Claim Fidelity, and Publisher Impact

arXiv:2605.14021 · cs.CY, cs.AI · Submitted 2026-05-13 · Read on arXiv

cs.CY, cs.AI

Submitted: 2026-05-13

Updated: 2026-10-01

Comments: Accepted to the 2026 ACM Internet Measurement Conference (IMC 2026)

Journal ref: Proceedings of the 2026 ACM Internet Measurement Conference (IMC '26), 2026, pp. 529-546

DOI: 10.1145/3777912.3839818

Code: https://github.com/haofeix/google-aio-characterization

Project page: https://blog.google/products-and-platforms/products/search/new-controlswebsite-owners

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Fidelity — 2× in this paper · explained in 2 episodes
• Generative AI — 1× in this paper · explained in 2 episodes

Sources

• The Rise of AI Search: Implications for Information Markets and Human Judgement at Scale
• Polisis: Automated Analysis and Presentation of Privacy Policies Using Deep Learning
• Why Language Models Hallucinate
• Impact of AI Search Summaries on Website Traffic: Evidence from Google AI Overviews and Wikipedia
• Search Engines in an AI Era: The False Promise of Factual and Verifiable Source-Cited Responses
• AI summaries in online search influence users' attitudes

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