The 4 Pillars of Product Due Diligence

Pillar 1: User Insights

  • What to Review: Activation funnels, feature-usage heat maps, churn drivers.
  • Why It Matters: Shows buyers which capabilities drive your business—and which are distractions.
  • Best Practices:
    • Segment by persona and ARR tier.
    • Correlate usage spikes to revenue events (e.g., renewals).

Pillar 2: Feature Health

  • What to Review: Code-backed telemetry on feature performance, error rates, and support tickets.
  • Why It Matters: Demonstrates execution quality and post-close maintainability.
  • Best Practices:
    • Run synthetic tests on core workflows.
    • Audit support logs for repeat issues.

Pillar 3: Roadmap Validation

  • What to Review: Feasibility assessments, market-fit surveys, competitive landscape.
  • Why It Matters: Aligns future promises with buyer expectations and resource realities.
  • Best Practices:
    • Conduct rapid stakeholder workshops.
    • Use lightweight scoring (e.g., MoSCoW) to rank features.

Pillar 4: UX & Scalability

  • What to Review: Usability audits, load-testing results, architectural constraints.
  • Why It Matters: Buyers need confidence that your product scales and delights users.
  • Best Practices:
    • Run a 1-day UX sprint with real users.
    • Simulate peak loads at 2× expected scale.

Putting It All Together

  1. Kickoff: Define scope by mapping pillars to buyer KPIs.
  2. Parallel Sprints: Run lightweight analytics, workshops, and tests simultaneously.
  3. Synthesis: Build a dossier with four sections—User Insights, Feature Health, Roadmap Viability, and UX Scalability.


A pillar-based framework turns Product DD from a sprawling audit into a crisp, buyer-grade review. Focus on User Insights, Feature Health, Roadmap, and UX/Scalability to deliver maximum impact in minimum time.

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