AI Overview Studies Report 1%, 15% and 39.8%—They Measure Different Things
Three prominent 2026 findings use different samples, treatments and outcomes. Here is the denominator-safe comparison.
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SEO
Crawling, content, and measurement
Reporting and practical analysis for technical, on-page, content, and publishing decisions.
AEO & AI Search
Answers, citations, and visibility
Platform changes, retrieval behavior, source attribution, and measurement without unsupported promises.
Research
Tests, methods, and evidence
Original protocols, observations, evidence reviews, and the limits on what each result establishes.
Workflows
APIs, automation, and verification
Implementation stories with reproducible inputs, failure states, evidence, and stopping conditions.
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Google UCP Is Not SEO: Prepare for Checkout in AI Mode and Gemini
Universal Commerce Protocol is an early-access checkout integration for eligible AI Mode and Gemini experiences—not a ranking shortcut.
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ChatGPT Delta Feeds: Accepted Does Not Mean Your Product Is Serving
An accepted Delta Feed update has entered processing; indexing, eligibility and serving remain separate states to reconcile.
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ChatGPT Conversion-Optimized Campaigns Still Charge Per Click
OpenAI’s oCPC beta optimizes toward one standard conversion event, but advertisers still pay for valid clicks.
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ChatGPT Ads Pixel vs Conversions API: What Each One Measures
Compare OpenAI’s browser pixel and server-side Conversions API by reliability, consent, deduplication, view-through attribution and release QA.
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Google’s before: Filter Is Not a Reliable Time Machine
An ACL 2026 study shows how updated pages, related content and unreliable dates leak post-cutoff facts into retrospective research.
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Which AI Search Assistant Cites the Most Credible Sources?
An EACL 2026 study compares GPT-4o, GPT-5, Perplexity and Qwen across 100 misinformation-prone claims—and reveals a tightly bounded result.
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Citation Count vs Citation Absorption: The AEO Metric Most Reports Miss
A public cross-platform dataset shows why the number of citations and the depth of a source’s contribution to an answer must be measured separately.
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ChatGPT Plugin Metadata Is a New Kind of AEO
Optimize plugin names, descriptions and parameters for correct tool selection with direct, indirect and negative golden prompts.
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