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GEO, SEO, and visibility in AI search engines.

Overlap between Google's top 10 and the sources cited by AI engines — University of Toronto study, 2026
Featured9 min

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 results: just 4 to 15% overlap. What it means for AI visibility.

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

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.

July 14, 2026
A steady stream of new posts continuously feeding the AI engines — ChatGPT, Perplexity and Gemini — while a one-off piece of content goes stale
GEO8 min

Publishing Frequency: The Overlooked Key to AI Visibility

85% of the sources cited by AI search engines are less than two years old. Here's why you have to publish often to stay visible in ChatGPT, Perplexity and Gemini.

July 3, 2026
How search evolved: from Google's blue links to synthesized answers from ChatGPT, Gemini and Perplexity
GEO7 min

Search Has Changed: Why Getting Cited by ChatGPT, Gemini and Perplexity Is Now Vital in 2026

ChatGPT reports 900M weekly users; Google's AI Overviews reach 2 billion a month. The 2026 numbers behind AI search — and what they mean for your visibility.

June 26, 2026
Timeline of SEO and GEO optimization impact across three horizons
GEO7 min

How Long Do SEO and GEO Results Really Take?

SEO or GEO — how long before real results? Honest timelines by channel, and how to prove to a client that your work actually moved the needle.

June 19, 2026
Diagram showing how AI search engines pick the sources they cite
GEO12 min

The Complete Guide to Generative Engine Optimization (GEO) in 2026

GEO made simple: how ChatGPT, Perplexity and Google AI Overviews pick their sources — and how to get your site cited in their answers.

May 30, 2026