Run A/B tests on subject lines, content, timing, or CTAs, letting the system pick winners to optimize engagement, conversions, and overall email ROI.
The difference between a good campaign and a great one is usually a test you ran. OptiPub’s built-in A/B testing lets you pit variations against each other and let real subscriber behavior — not guesswork — decide what goes out.
Test what actually moves the needle
Test subject lines, content and creative, send timing, and calls to action. Run two or more variations and OptiPub measures how each performs against the metrics that matter to you — so every decision is grounded in data, not opinion.

Let the system pick the winner
Send your variations to a sample of your audience, and OptiPub automatically identifies the best performer and rolls it out to the rest. Your full list gets the version most likely to convert, with no manual monitoring or last-minute guesswork.
Optimize for the metric that matters
Whether you’re optimizing for opens, clicks, conversions, or revenue, you choose the goal and test against it. Every send becomes a chance to learn something you can apply to the next one.
What you get
- Test subject lines, content, timing, and CTAs
- Automatic winner selection and rollout
- Decisions backed by real subscriber behavior
- Higher engagement, conversions, and email ROI
- A compounding edge as every test informs the next
Better together
Testing gets sharper when it’s targeted and measured. Run tests within precise Segments, dig into results with Advanced Reporting, and apply your winners across every send in Campaign Management.
Send the version that wins
See how built-in A/B testing turns every campaign into an optimization opportunity.
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