idrlabs.com — September 2026 traffic, keywords & AI visibility

# Free psychological inventories from peer-reviewed studies with full scoring transparency and no sign-up required

## About
IDR Labs operates a plain, no-frills website that hosts dozens of psychological inventories pulled directly from published academic papers. Visitors can take assessments on personality traits, cognitive abilities, attachment styles, clinical measures, moral foundations, political attitudes, and dark triad traits without creating an account or hitting any paywall. Each completed test shows the exact scoring method plus citations back to the original studies so users can see precisely how their results were calculated. The site has expanded gradually over more than a decade by adding new inventories while sticking strictly to publicly available research materials. Most people drop by for quick personal insights such as career fit or relationship patterns, while researchers, clinicians, and students keep returning because the methodology stays open and reproducible. The team deliberately avoids proprietary algorithms and instead reproduces findings from the literature as closely as possible. Traffic comes from many countries through an English-first interface that sometimes receives community translations. Revenue comes from optional donations and advertising rather than subscriptions or venture funding. Data collection is kept minimal so most sessions stay