# Cofounderbase > Cofounderbase is an independent research index of evidence-backed company growth playbooks. Each case documents the causal growth mechanism, transferability score, evidence grades, and a steal-code pack solo founders can adapt under real constraints. Cofounderbase helps founders answer: “Which growth system fits my budget, hours, and ICP — and what mechanism should I steal next?” ## Core product - [Home](https://www.cofounderbase.com/): Guided start — quiz, proof plays, systems - [Brand mark](https://www.cofounderbase.com/brand/cofounderbase-mark.svg): Twin-pillar letterpress colophon - [Companies](https://www.cofounderbase.com/companies): 100 cited company growth case studies - [Growth systems](https://www.cofounderbase.com/systems): 12 canonical growth systems every playbook maps to - [Compare](https://www.cofounderbase.com/compare): Mechanism diffs (system A vs system B) - [Growth quiz](https://www.cofounderbase.com/quiz): 60-second constraint quiz to find a fitting system - [Forensic Brief](https://www.cofounderbase.com/brief): Free personalized brief from your site + ICP + constraints ## Research & authority - [Learn](https://www.cofounderbase.com/learn): Lab, Growth Court, and research method hub - [Blog](https://www.cofounderbase.com/blog): Mechanism essays you can cite and ship from - [India systems](https://www.cofounderbase.com/india): India-specific growth systems (UPI, density, vernacular loops) - [Lab](https://www.cofounderbase.com/lab): Dated experiments run on Cofounderbase, including failures - [Growth Court](https://www.cofounderbase.com/court): Viral growth claims with evidence grades and rulings - [Method](https://www.cofounderbase.com/method): Extract → score → 14-day experiment research OS ## Machine-readable - [Pricing](https://www.cofounderbase.com/pricing.md): Current free-tier pricing for AI agents - [Sitemap](https://www.cofounderbase.com/sitemap.xml): Full URL inventory for crawlers - [Robots](https://www.cofounderbase.com/robots.txt): Crawl rules (AI citation bots allowed) ## Optional - [Cite a playbook](https://www.cofounderbase.com/stripecasestudies): Example company growth case study with mechanism + steal-code - [HubSpot case study](https://www.cofounderbase.com/hubspotcasestudies): HubSpot growth case study — content SEO moat mechanism - [Tactics: cold email](https://www.cofounderbase.com/tactics/cold-email): Outbound growth tactic page - [Tactics: product-led virality](https://www.cofounderbase.com/tactics/plg-virality): PLG virality tactic page - [Tactics: programmatic SEO](https://www.cofounderbase.com/tactics/programmatic-seo): Programmatic SEO tactic page ## Contact - Site: https://www.cofounderbase.com - Brand: Cofounderbase