Measurement & Analytics

Tools, metrics, methodology. Reproducible benchmarks.

Cornerstone

7 Jun 2026
State of GEO Q2 2026: the AI engine you optimize for matters most
We probed 100 brands across ChatGPT, Claude, Gemini, and Perplexity — 4,000 prompts. Citation rate varies far more by which engine you ask than by which brand you are: Perplexity cites 42%, ChatGPT 7%, Gemini hides its sources, and legacy news publishers get 0%.

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State of GEO Q2 2026: the AI engine you optimize for matters most
Cornerstone
7 Jun 2026
We probed 100 brands across ChatGPT, Claude, Gemini, and Perplexity — 4,000 prompts. Citation rate varies far more by which engine you ask than by which brand you are: Perplexity cites 42%, ChatGPT 7%, Gemini hides its sources, and legacy news publishers get 0%.
Who LLMs cite for GEO: 927 sources, 417 domains, zero of them us
7 Jun 2026
Across 50 GEO questions, four LLMs returned 1,105 source links. After setting aside Gemini's opaque redirects, the 927 attributable citations spread across 417 domains — a long tail led by YouTube and SEO-tool blogs. Here's the map, with the grounding caveat up front.