Stop Guessing, Start Testing
A/B testing (split testing) compares two versions of a marketing element to determine which performs better. It removes opinion from decision-making and lets data guide your optimization. The businesses that test systematically outperform those that rely on gut feelings.
What to A/B Test
Website Elements
- Headlines — Often the highest-impact test you can run
- CTAs — Button text, color, size, and placement
- Forms — Number of fields, layout, button copy
- Images — Photos vs. illustrations, people vs. products
- Page layout — Content order, sidebar vs. no sidebar
Email Marketing
- Subject lines — The most common email test
- Send times — Morning vs. afternoon, weekday vs. weekend
- Content format — Long vs. short, image-heavy vs. text-focused
- CTAs — Button vs. text link, placement, copy
Advertising
- Ad copy — Headlines, descriptions, CTAs
- Creative — Images, videos, formats
- Audiences — Targeting variations
- Landing pages — Different pages for the same ad
A/B Testing Best Practices
Test one variable at a time to isolate impact. Run tests long enough for statistical significance (usually 1-4 weeks). Set a hypothesis before testing. Document results and build institutional knowledge. Always have a next test planned.
Start Testing with Brandastic
Brandastic runs systematic A/B testing programs that continuously improve marketing performance. Get a free CRO consultation.



