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What is A/B Testing and How to Set It Up

Guide to setting up A/B tests for website content optimization

Updated this week

Overview:

A/B testing, also known as split testing, is a powerful method to compare two versions of a webpage to determine which one performs better. It helps marketers optimize website elements such as headlines, images, CTAs, or page layouts to drive better conversions and engagement. Relevic makes setting up A/B tests simple and intuitive, allowing you to test page variations and identify the most effective version. In this article, we’ll explain the basics of A/B testing, why it’s important, and how to set up A/B tests in Relevic.

What is A/B Testing?

A/B testing involves showing two versions (Version A and Version B) of the same webpage to different segments of your audience and measuring which version performs better based on a specific metric (e.g., click-through rates, form submissions, or conversions). By making data-driven decisions through A/B testing, you can continuously optimize your website’s performance, ensuring it resonates with your visitors and drives the desired actions.

Why A/B Testing Matters:

A/B testing provides valuable insights into how small changes in your website design or messaging can impact user behavior. Whether you're testing different CTA button colors, headlines, or even entire page layouts, A/B testing enables you to:

  • Increase Conversion Rates: Identify which version of your page leads to more sign-ups, purchases, or other desired actions.

  • Optimize User Experience: Understand how different design choices affect how users interact with your site, helping you improve usability and satisfaction.

  • Reduce Bounce Rates: Test different layouts or content strategies to keep visitors on your site longer.

How A/B Testing Works:

In a typical A/B test:

  1. Version A (the control) represents the original page.

  2. Version B (the variation) includes a change you want to test (e.g., a different headline or CTA).

  3. Traffic is split between the two versions, and user interactions (such as clicks or conversions) are tracked.

  4. The version that performs better based on your chosen metric is considered the “winner,” and you can implement those changes permanently.

Steps to Set Up A/B Testing in Relevic:

  1. Define Your Testing Goal: Before setting up an A/B test, determine what you want to achieve. Do you want more users to click a specific CTA? Are you testing which headline drives more conversions? Define a clear goal for your test.

    Pro Tip: Always focus on one variable at a time (e.g., testing different button colors or headlines) to accurately measure the impact of the change.

  2. Create a New Campaign in Relevic: Log in to your Relevic account and navigate to the Campaigns section. Click on Create New Campaign to open the Campaign Canvas.

    • Enter a name for your A/B test campaign (e.g., "CTA Button Color Test").

    • Define the start and end dates for your test. The length of the test will depend on your website traffic and the significance of the change you're testing.

    Pro Tip: Ensure your test runs long enough to gather statistically significant data. For high-traffic websites, a few days may be sufficient; for lower traffic, a longer duration might be required.

  3. Set Up Page Variations: In the Campaign Canvas, select the page you want to test by entering its URL. Then, create two versions of the page:

    • Version A (Control): This is the original version of the page with no changes.

    • Version B (Variation): Make your desired change using Relevic’s drag-and-drop editor. This could be a new CTA button color, different headline, or even a change in layout.

    Example: For a product page, you could test two versions of a CTA button. Version A could say “Buy Now,” while Version B could say “Get Yours Today.”

  4. Set Traffic Distribution: Relevic allows you to split traffic between the two versions. You can assign equal traffic to both versions (50/50) or allocate a different ratio depending on your test objectives.

    Pro Tip: For an initial test, it’s best to split traffic equally (50/50) to ensure both versions are seen by a comparable number of users. Once you gather more data, you can tweak the distribution for further tests.#

  5. Assign Audience Segments: You can apply filters to test different variations for specific audience segments. For example, you could run A/B tests for first-time visitors versus returning visitors or based on geographic location.

    Example: You might want to show different CTA variations to users in the U.S. versus those in Europe to see which message resonates better in each region.

  6. Launch the A/B Test: Once you’ve created your page variations and defined your audience, click Publish to launch the test. Relevic will automatically split traffic between the two variations and begin tracking the results in real time.

  7. Monitor Performance: After launching your test, navigate to the Analytics section of Relevic to track how each variation is performing. Monitor key metrics such as:

    • Click-Through Rates (CTR): How many visitors clicked on a button or link.

    • Conversion Rates: How many visitors completed the desired action (e.g., purchase, sign-up).

    • Bounce Rates: How many visitors left the page without taking action.

    Pro Tip: Keep an eye on how each version performs over time. If one version consistently outperforms the other, consider ending the test early and applying the winning variation across your website.

  8. Analyze the Results and Implement Changes: Once your test has run its course and you have gathered enough data, analyze the results. If Version B outperformed Version A in terms of conversions or engagement, you can implement the changes site-wide to optimize performance.

    Pro Tip: Don’t stop testing after one successful experiment. Continuous A/B testing helps you refine and improve your website’s effectiveness over time. Always have a new hypothesis ready for the next round of testing.

Examples of Effective A/B Testing:

  • Testing CTA Buttons: If your goal is to increase conversions, you could test different CTA buttons. For example, Version A might use the text “Buy Now,” while Version B uses “Get Yours Today.” Track which version leads to more clicks.

  • Testing Headlines: If you want to reduce bounce rates, test different headlines on your landing page. Version A might have a straightforward headline like “Welcome to Our Store,” while Version B could have a more action-driven headline like “Discover Exclusive Offers Here.”

  • Testing Page Layouts: If you want to improve user engagement, test different page layouts. Version A might have a product gallery at the top, while Version B features customer testimonials as the focal point.

Best Practices for A/B Testing:

  • Test One Variable at a Time: To get accurate results, only test one change (e.g., headline, button color, or image) at a time. This ensures you know exactly which change impacted performance.

  • Run Tests Long Enough for Statistical Significance: A/B tests should run long enough to gather enough data for reliable insights. Don’t rush to conclusions after a few hours of testing.

  • Track the Right Metrics: Focus on the metrics that align with your test goals (e.g., CTR, conversions, bounce rates). This ensures you’re optimizing for the most important KPIs.

  • Continuously Test and Improve: A/B testing isn’t a one-time activity. Continuously run tests on different elements of your site to ensure ongoing optimization and improvements.

By leveraging A/B testing in Relevic, you can make data-driven decisions to optimize your website and ensure that your content resonates with your audience. Whether you’re testing minor tweaks like button colors or larger changes like page layouts, A/B testing helps you refine your strategy and maximize conversions.

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