Category

Studies

fr
Three AI engines - ChatGPT, Perplexity, Google - each pulling from different sources to answer the same question
GEO10 min read

ChatGPT, Perplexity, Google: why each AI cites different sources

A study of 22.7 million citations finds ChatGPT and Perplexity share only 11% of their sources. What that means for your GEO strategy.

Comparison of average AI visibility scores by platform, measured across 2,994 websites audited in 2026
GEO23 min read

WordPress, Wix, Shopify, Webflow or Next.js: Which Platform Best Prepares Your Site for AI?

A 2,994-site study: 9.4 points separate the best platform from the worst on AI visibility, yet 95% of pages fail on content no matter what you build on.

Gap between average SEO score and average AI visibility score across 2,563 websites audited in 2026
GEO9 min read

GEO Readiness Study 2026: 2,563 Sites Ready for Google, Not for ChatGPT

We audited 2,563 sites: 63.5/100 on SEO, 45.1 on AI visibility, and on 97.8% of pages fewer than half the sections open with a citable passage.

Split between brand sites, press coverage and social platforms in AI engine citations — comparison of four 2026 studies
GEO9 min read

AI Citations: Brand or Press? What 4 Contradicting Studies Actually Reveal (2026)

Two studies clash on AI citations: 86% brand-owned vs 84% earned media. Here's why the numbers disagree, and what it means for your GEO strategy.

Abstract illustration of a scientific chart scoring GEO tactics, some effective, some with no measured effect
GEO10 min read

GEO in 2026: What the Research Actually Shows Works (and What's Just Hype)

A July 2026 review of 45 studies pulls apart the GEO hype: which tactics have real scientific backing, and which ones have none at all.

Overlap between Google's top 10 and the sources cited by AI engines — University of Toronto study, 2026
GEO9 min read

Study: ChatGPT's Sources Only Overlap Google's Top 10 by 4%

Toronto researchers compared the sources cited by GPT-4o, Claude, Gemini and Perplexity with Google's top 10: just 4 to 15% overlap in results.

AI visibility ranking of 100 French media sites — LightSpot 2026 study
GEO9 min read

French Media AI Visibility Study: 100 Sites Audited, None Above a C

We audited 100 leading French media sites on 46 criteria. Average score: 46/100. None reaches grade B, and every one fails complete Article structured data.