The Indexably Method — Complete Findings With External Research Context

Full research documentation and methodology reference for the Indexably calibration system.

Study Design

500 prompts across 12 query categories sent to 5 AI surfaces. 25,115 total citations collected, 18,129 unique cited URLs. 4,622 control URLs from Brave Search. 213 on-page structural signals extracted. 2,000 domains analyzed for authority signals.

Statistical Methods

Cohen's d effect sizes, composite scoring with volume-weighted cross-model analysis, logistic regression for combined page+domain analysis, quartile stratification, and within-domain comparison.

Key Finding

No published study as of March 2026 meets all 13 methodological criteria this study satisfies.