Wikipedia is the #1 cited domain in Google AI Mode (11.22%); YouTube #2 at 9.51%

reference·Scope: business·Status: current

Created 2026-05-22

Claim: Ahrefs Q1 2026 cross-platform data: Wikipedia is the #1 cited domain in Google AI Mode at 11.22% of all tracked mentions; YouTube is #2 at 9.51%. Surfer SEO Tracker (March-Aug 2025, 36M AI Overviews, 46M citations): YouTube ~23.3%, Wikipedia ~18.4%, Google.com ~16.4%.

Sources: Surfer SEO — https://surferseo.com/blog/ai-citation-report/; The Digital Bloom — https://thedigitalbloom.com/learn/google-ai-overviews-top-cited-domains-2025/; Ahrefs Q1 2026.

Confidence: Industry-consensus.

Common thread among top-cited domains: structured, neutral, schema-rich content with explicit citation chains. Wikipedia operationalizes verifiability; YouTube's metadata (description, chapters, transcripts) is structurally extractable; Reddit's thread structure surfaces atomic Q&A. This is the empirical case for KB-shaped content.

reference Wikipedia verifiability policy: all challenged material must carry an inline citation to a reliable published source

Wikipedia is the #1 cited domain in Google AI Mode (11.22%); YouTube #2 at 9.51%

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