A/B testing can help you understand your website visitors’ thought processes and the factors that influence their purchasing decisions. Call-to-action buttons can be tested in much the same way that headlines can. Color, placement, size, and form are all testable variables; but the words you employ to persuade your audience to take action should also be subjected to rigorous evaluation. You need to consider your industry, your consumers, and the problems your products or services help solve in order to stand out from the competition and encourage people to click on the buttons you provide on your website.