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A Beginner’s Guide To A/B Testing: Exceptional Web Copy

Optimizing the copy on your website is at least as important as optimizing the design, especially if the primary goal of that site is to convert visitors. A pretty design can only get you so far. If you really want to gain new customers, you need to optimize the text on your site to instill trust in visitors and make them want to purchase from you.

We often spend hours or days reading about the best techniques to use to sell products. But that doesn’t give us a complete picture, and what works great for one company or one product might not work at all for another. A/B testing is the simplest type of testing you can do to figure out which variations of copy, headline, and other factors are most effective in direct relation to your site and your offerings. This is part two of a series of posts on A/B testing, which will be published in the coming weeks.

Things to Test

There are a ton of things you can test on your site to see what’s most effective. Besides design elements, there are things like headings, calls-to-action, and your specific offers. Proper testing of these things can triple or even quadruple your conversion rates—and sometimes multiply them even more!

Here’s a brief list of the web copy elements on your site you might test:

  1. Headline: The headline is what grabs your reader’s attention and gets them to keep reading. Test different wording, as well as different text sizes here, to get the best results.
  2. Call to Action Text: The exact wording of your call to action can have a surprising impact on your conversion rate. 37signals has done extensive testing of their call to action text, and finally found a phrase that delivered 300% more signups than other versions.
  3. Call to Action Position: Where you place your call to action can have a huge effect on how well it converts. Test a few different positions (above body copy, beside body copy, below body copy, within body copy, etc.).
  4. Call to Action Style: How you style your call to action includes whether it’s just a text link or a button, the size, and the colors used. These things should be tested individually for the most accurate results.
  5. Copy Length/Style: The length and formatting of your body copy makes a huge difference in how many people actually read it. Test out different formats (lists, lots of headlines and short paragraphs, etc.) as well as different copy all together to see what works best.
  6. Corresponding Images: While not strictly copy, the images you opt to use with your text can have a huge impact on conversions, especially when selling a physical product. Test out which images work best, how many images are optimal, and how large those images should be.
  7. Different Offers: You may want to test different offers to see which one works best. Try to set your offers up so that they have similar values (to prevent skewed results). For example, you might offer one group of visitors free shipping, and the other group 10% off.

Make a list of the elements you want to test, and then figure out a strategy for testing them. Since you only test one element at a time, it’s important to craft a plan prior to starting to test, so that you can make sure everything gets tested. You should also have baseline readings ready prior to testing, especially if you aren’t going to use your existing design as a control.

Once you have a testing strategy mapped out, look at the tools available to help you carry out a successful test, and further refine your strategy based on the tools you decide to use.

Tools for A/B Testing

There are a variety of tools out there for conducting and monitoring A/B tests. There are two basic types, and some tools provide both: you need a tool (generally a script) that will randomly deliver one version of your page or the other to your visitors. The other tool you need is something to monitor the results for each page (which also keeps track of which page the visitor was shown).

One of the best tools out there is Optimizely.

Here are some useful guides we’ve written on Google Website Optimizer:

A/B Testing Best Practices

A/B testing is an important part of any successful marketing effort. Here are some best practices you should follow when conducting an A/B test.

The key to a successful A/B test is consistency and control. You want your data to be as accurate as possible, and that requires careful planning and execution. By following the best practices above, you’ll have a successful A/B test with sound results on which you can base important decisions.

We’ll be posting a number of other posts on A/B testing for email campaigns, pay-per-click advertising, and SEO landing pages in the coming weeks, so stay tuned!

About the Author: Cameron Chapman is a freelance designer, blogger, and the author of Internet Famous: A Practical Guide to Becoming an Online Celebrity.

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