Data-Driven Email Optimization
Stop guessing which subject lines work. A/B testing lets you scientifically test variations and automatically use the winners, continuously improving your results.
Test Everything That Matters
Subject lines, preview text, body copy, CTAs, send times, and personalization approaches. Each test builds your knowledge of what resonates with your audience.
Key Capabilities
Testing Options
- Subject line variations
- Email body copy tests
- Call-to-action experiments
- Send time optimization
- Personalization approaches
Statistical Rigor
- Sample size calculator
- Statistical significance detection
- Confidence interval display
- Automatic test conclusion
- Clear winner identification
Automation
- Automatic traffic split
- Winner auto-selection
- Sequence-wide application
- Historical test library
- Best practice recommendations
The Compound Effect of Testing
A 10% improvement in open rate and 15% improvement in reply rate compounds across thousands of emails. Teams that test consistently see 2x better performance over a year.
Learn What Works for Your Audience
Generic best practices don’t always apply. Your prospects are unique. A/B testing reveals what specifically works for your ICP, industry, and value proposition.