

The Ultimate Guide to What Can You AB Test for Maximum Impact

The Ultimate Guide to What Can You AB Test for Maximum Impact
20-01-2025 (Last modified: 18-04-2025)
Becky Halls
Introduction
Ever wondered, “What can you AB test?” The answer might surprise you: practically everything. A/B testing, when done right, opens a world of possibilities for refining your website, emails, and digital marketing efforts. But instead of simply listing ideas, let’s explore how to strategically approach A/B testing for maximum impact.
The Foundation: Understanding Your Goals
Before you start testing, it’s crucial to ask yourself why you’re testing. Are you looking to increase conversions, improve user engagement, or boost revenue? Clear goals set the stage for meaningful results. Once you know your objectives, it’s time to decide what can you AB test to achieve them.

High-Impact Testing Areas
Let’s start with some of the highest-value areas for A/B testing. These are the elements that directly affect your user’s journey and decision-making.
1. Landing Pages
Landing pages are where first impressions are made. Testing different layouts, headlines, or offers can yield significant improvements.
- Example: Test a minimalist design with fewer distractions versus a detailed layout packed with testimonials and features.
- Tip: Focus on testing elements above the fold for immediate impact.
2. Product Pages
For e-commerce, product pages are critical. Test elements like:
- Product Descriptions: Short, snappy copy vs. in-depth details.
- Pricing Formats: Display prices as “$19.99” versus “Only $19.99” or highlight discounts.
- Image Galleries: Static images vs. interactive 360-degree views.
3. Call-to-Action (CTA) Placement
CTAs drive user actions. Their location, design, and wording are prime candidates for A/B testing.
- Example: Test a sticky CTA button versus one that appears only at the end of the page.
- Keyword Tip: When considering “what can you A/B test,” always prioritize testing the CTAs.
Beyond the Basics: Mid-Level Testing Ideas
Once you’ve tackled the essentials, it’s time to think creatively. Testing these elements can provide insights that influence other areas of your digital strategy.
4. Blog Content
Surprised? Blogs are not exempt from testing! Experiment with:
- Titles: “How-To” guides versus listicles.
- Content Length: Short, digestible posts vs. long-form articles.
- Internal Links: Adding more links to related posts vs. fewer for simplicity.

5. Popups and Modals
Popups are divisive, but effective when used correctly. Test different strategies, such as:
- Timing: Immediate vs. after 30 seconds.
- Offers: Discounts vs. free shipping.
- Design: Minimalist vs. bold and colorful.
6. Social Proof Placement
Testimonials, reviews, and star ratings build trust. Experiment with their placement on your site.
- Example: Test showcasing customer reviews near the CTA versus lower down the page.
- Why it works: Social proof is one of the most persuasive factors for hesitant buyers.
Advanced Testing for the Pros
Once you’ve mastered the basics, consider more nuanced tests that dive deeper into user behavior.
7. Personalization
Personalization is a game-changer. A/B testing can reveal what personalization tactics work best for your audience.
- Example: Test displaying dynamic greetings (e.g., “Welcome back, Sarah!”) versus a generic message.
- Pro Tip: Use tools like PageTest.ai to streamline personalized A/B tests.
8. Page Speed
A faster site leads to better user experiences. Test the impact of loading speed optimizations, such as compressing images or lazy loading.
- Example: Test a page with optimized images versus one with high-resolution visuals.
- Why it matters: Every second counts when retaining users.
9. Checkout Flows
For e-commerce, the checkout process can make or break conversions. Test:
- One-page checkout vs. multi-step processes.
- Guest checkout availability.
- Payment options (e.g., offering PayPal alongside credit card payments).
What Can You AB Test in Marketing Campaigns?
A/B testing isn’t confined to websites. Your marketing campaigns are ripe for experimentation too.
10. Email Campaigns
Emails are perfect for testing, given their immediate feedback through open and click-through rates.
- Subject Lines: Personalized vs. generic.
- Send Times: Morning vs. evening.
- Layout: Image-heavy designs vs. text-only.
11. Ad Copy
Your ads’ effectiveness hinges on how well they resonate with your audience. Test:
- Headlines: Question-based vs. statement-based.
- Call-to-Actions: “Learn More” vs. “Shop Now.”
- Targeting: Narrow audiences vs. broader ones.

Real-World Success Stories
Need inspiration? Here are a few companies that nailed A/B testing:
- Netflix: A/B tested thumbnails to determine which images increased user engagement with specific shows.
- Airbnb: Experimented with search filters to find the optimal layout for user satisfaction.
- Amazon: Continuously tests everything from product page designs to shipping notifications.
Tools to Simplify A/B Testing
No matter what you’re testing, the right tools make all the difference. Some top picks include:
- PageTest.ai: User-friendly and perfect for testing headlines, images, and CTAs.
- Google Optimize Alternatives: Tools like VWO or Optimizely are great for in-depth experiments.
- Hotjar: Understand user behavior through heatmaps and session recordings.
Pro Tips for Testing Success
- Start Small: If you’re overwhelmed by choices, start with the elements that align closely with your goals.
- Document Everything: Keep track of what you’ve tested, your results, and any insights gained.
- Stay Patient: Some tests take time to reach statistical significance. Avoid rushing.
- Iterate: One successful test can inspire others. Use your results as a springboard for further experimentation.
- Ask: ‘What Can You A/B Test Next?’ Always look for new opportunities to optimize and innovate.
Conclusion: The Endless Potential of A/B Testing
The question isn’t just “what can you AB test,” but rather, “what should you A/B test?” With the right strategy, tools, and mindset, the possibilities are limitless. So, dive into testing with curiosity and confidence. Your next big breakthrough could be just one test away!
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