Avoiding Common CRO Mistakes
Learn from these common mistakes to run more effective experiments and get better results.
Stopping Tests Too Early
The biggest mistake is ending experiments before reaching statistical significance. Be patient and let tests run their course.
Testing Too Many Variables
Testing multiple changes at once makes it impossible to know what drove results. Test one variable at a time.
Ignoring Mobile Users
Don't optimize only for desktop. Segment your results by device and create mobile-specific variants when needed.
Not Having a Hypothesis
Random testing wastes time. Always start with a clear hypothesis based on data or user research.
Forgetting About Existing Customers
Consider how changes affect returning customers, not just new visitors. Use segmentation to analyze both groups.
Neglecting Qualitative Data
Numbers don't tell the whole story. Combine A/B testing with user feedback, surveys, and session recordings.
Not Documenting Learnings
Keep a record of all experiments and results. Build institutional knowledge to inform future tests.