What is a Test Plan?

A CRO Test Plan is the formal blueprint created before launching any experiment. It ensures developers, designers, and marketers agree on test goals, targeting, and analytics instrumentation.

Test Plan Components

  1. Title & Hypothesis: Clear statement of observation and predicted outcome.
  2. Target Audience: Device types (mobile/desktop), traffic channels, or user segments.
  3. URL Targeting: Specific page URLs or pattern globs (e.g. /products/*).
  4. Primary & Guardrail Metrics: Conversion events determining success or failure.
  5. Sample Size & Duration: Estimated traffic requirement (e.g. 14 days, 40,000 sessions).
  6. QA Protocol: Cross-browser and device QA checklist.

Developer Takeaway

Strict QA Verification: Always execute a complete test plan QA pass in staging environments—verifying that variations render correctly across iOS Safari, Chrome, and Firefox before pushing live.