What 45 GEO Studies Actually Prove—and What They Do Not
A critical 2026 survey separates retrieval, citation, absorption and downstream behavior—and finds the evidence narrower than most GEO claims.
From this desk
Start with the most useful page
The featured page offers a strong introduction. The remaining cards help readers move through this editorial section without turning the archive into a service menu.
Read the flagship case study
How SearchEngineAnswer went from zero to early search visibility
This first-person build record connects publishing decisions with indexing evidence, Search Console observations, limitations, and the next measurement window.
Case study
Connect decisions with observed outcomes
Follow the site build, indexing evidence, changes, and limits instead of treating one visibility event as a universal rule.
Experiments
Change one material variable
Preserve the baseline, observation window, confounders, and decision rule so a result remains inspectable.
Evidence
Keep every claim close to support
Classify facts, observations, interpretations, recommendations, and opinions before drafting conclusions.
Latest research
Completed tests, case studies, and evidence reviews
Each research article identifies the question, evidence, method, result, limitation, and boundary on what can be inferred.
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ChatGPT Referral Growth: Separate AEO Lift from Platform Tailwind
Separate intervention-aligned ChatGPT referral movement from platform growth with treated and control definitions, first-party evidence, placebo checks, organic guardrails, and a reusable ledger.
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Page Weight vs Extractable Text: Results From a 25-Site Audit
We measured compressed response size, decoded HTML, server-extractable text and rendered text across 25 public sites. The results show why page weight alone is not a crawlability verdict.
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Accessibility Tree, HTML, or Screenshot? What 10 Fixed Tasks Preserved
A ten-task fixture audit found no universal page representation: raw HTML preserved 6 exact answers, while rendered DOM, accessibility tree, and screenshots each preserved 7—but different ones.
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Google ranking volatility: diagnose a traffic drop with evidence
Compare queries, pages and CTR before changing content. Use a downloadable traffic worksheet and keep the confirmed August update separate from earlier movement.
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chat-latest Is a Moving Target: Freeze Model IDs for Reproducible Tests
OpenAI says chat-latest is regularly updated. Use a fixed model for regression tests and a complete run manifest when comparing current ChatGPT-aligned behavior.
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2026 Retrieval-Augmented Answer Patents: 64 Claims-First Families
A capped 2026 review screened 344 unique US, WO and EP publications, read 173 independent-claim records and found 64 working families meeting a strict query–retrieval–answer test.
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Cloudflare Content Format Chart: What 25 Requests Actually Returned
Two 25-request observations show explicit Markdown negotiation, major byte reductions, cache variation and one documentation URL that later moved.
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Mistral Search Toolkit: Build a 32-Field Retrieval Release Gate
Freeze the toolkit, corpus, document identities, queries, candidates and reranking before evaluating generation with a 32-field release ledger.
A useful standard
How to read SearchEngineAnswer research
A useful study makes its conditions visible. Treat each result as evidence within a declared sample and environment, not as a universal platform rule.
Method before conclusion
The question, inputs, environment, measures, and stopping rule should be understandable before the result is interpreted.
Failures stay in the record
Timeouts, absent results, rejected cases, and contradictory observations are data, not material to hide.
Limits remain visible
A measured association or one platform observation does not automatically establish causation or a permanent ranking rule.
References and next steps