
Google Says You Don't Need llms.txt. Here's the Catch.
Google says llms.txt is unnecessary. Chrome Lighthouse audits it anyway. We fact-checked five studies on what llms.txt really does for AI visibility in 2026.
Also known as: Pixelmojo Brand Index, Transparent AI Visibility Reference Index, AI Visibility Brand Index, Live Brand AI Readiness Index
Curated public reference index of 50 named brands across SaaS, E-commerce, Fintech, Healthcare, and Media. Each brand is audited weekly with Radar's 13-tool methodology, producing a live AI Readiness Score (0-100) and grade (A-F). Methodology is fully published on /platform/methodology, weights, dimensions, and live LLM query mechanics are all transparent. Brands behind hard paywalls or aggressive anti-bot defenses are explicitly flagged as "Audit Blocked" rather than scored zero, distinguishing structurally-invisible sites from poorly-optimized ones. Free, anonymous, no signup. The index is part of Radar (same engine, same methodology) surfaced as a Pixelmojo Labs research surface rather than inside the paid /platform dashboard.
Canonical resource
/labs/brand-indexWant to implement radar brand index in your product?
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Google says llms.txt is unnecessary. Chrome Lighthouse audits it anyway. We fact-checked five studies on what llms.txt really does for AI visibility in 2026.

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