What 3,602 Early ChatGPT Ads Reveal About Delivery
A 91-account audit recorded 3,602 ChatGPT ads. See the delivery rate, count discrepancies, income finding, limits and audit ledger.
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Latest articles tagged “Original Research”
Open an article for the complete method, evidence, limitations, and a focused reader discussion.
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What 7,473 AI Citations Can and Cannot Tell Us
BrandGhost’s latest Observatory run offers useful signals about citation age and engine overlap, but its date and source-category coverage materially limit broader claims.
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Are People Also Ask Answers Becoming AI-Generated?
A third-party report says AI-generated People Also Ask answers reached 97% of its English-language sample. Here is what the number can support and how to audit it.
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Agentic Commerce Standards Split Across Protocols, Data and Trust
The W3C commerce workshop exposed a stack, not one standard: transaction protocols, product data, identity, consent, payment and trust still need to interoperate.
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Perplexity Citation Audit: When a Link Does Not Support the Number
We recalculated two public Perplexity citation files, separated row and claim denominators, and built a four-state audit for numerical source support.
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Two GEO defense papers test different failures in AI answers
Two September 2026 papers study GEO defenses. Compare factual distortion with source-selection manipulation, and download our evidence-review worksheet.
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Does Replying to Google Reviews Faster Improve Local Rankings?
Google recommends useful review replies but does not document reply speed as a local-ranking factor. Here is a service policy and a cautious test design.
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Do AI Crawlers Request Markdown? Test the Accept Header First
Cloudflare can negotiate Markdown responses, but that does not prove AI crawlers request them or that Markdown improves citations. Use this verified-log protocol before changing your site.
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AI Overview Click Study: What the 1% Means
A 900-person US browsing study observed fewer result clicks and more session endings when AI Overviews appeared. Here is the denominator, study design, and limit behind the 1% source-click figure.
