Coding for A/B testing: Run more AB tests, find more winners

✓ Updated in 2025; now includes AI for A/B testing and free guides

✓ Bestseller in the Udemy “A/B testing” category

✓ 3,500+ students; one of the most popular CRO courses worldwide


As a Conversion Optimization specialist or as someone working on website A/B testing, your success is often determined by the number of A/B tests you run and the number of test winners you find. So the more tests you run, the higher your chance of success. But very often, the IT department is a major bottleneck for us. When we want to set up a test, it ends up at the bottom of the IT backlog, costing you valuable time and decreasing your chance to be successful in AB testing. If you recognize this situation, then this is the right course for you.

By taking this course you will learn:

• HTML

• CSS for website AB testing

• JavaScript (jQuery) for website AB testing

• Data tracking for website AB testing

• Setting up 60 to 90% of your own A/B tests without the help of a developer

This helps you to set up and run many more A/B tests and greatly increase your success. The course is set up in a practical and engaging manner. Together, we will start with the absolute basics before building many different kinds of A/B tests on your own website, while we increase the complexity step by step. The course is designed for people with no coding skills, and for those that have some experience already. The learnings in this course are applicable to every testing tool on the market.

Coding for A/B testing course structure

• Section 1: Introduction

• Section 2: HTML

• Section 3: CSS for AB testing

• Section 4: jQuery for AB testing

• Section 5: JavaScript for AB testing

• Section 6: Data gathering for AB testing

• Section 7: Debugging & Quality assurance for AB testing

• Section 8: Thank you

Of course, there are many web development courses out there. But there is one big difference: As a Conversion specialist, you don’t build websites, you chance them. This requires a completely different focus on coding while also making sure you obtain reliable and trustworthy data. Web development courses help you to build websites, this course helps you to build and run reliable and successful A/B tests.

The course is designed for anyone working on A/B testing. Conversion specialists, growth hackers, and even front-end developers can hugely benefit from this course.

Now let’s get started. Feel free to check out the free preview lectures, or start taking this course right now.