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Optimizely Blog

Tips & Tricks for Building Your Experimentation Program

Experiment Engine Joins Optimizely


Experiment Engine Joins Optimizely

Three years ago, we launched Experiment Engine with the aim to help teams Always Be Testing. Making continuous experimentation easy has been the singular focus of our team, and we’ve been lucky over the past few years to help some of the best brands in the world scale their testing programs. With that mission still very much […]

What Exactly Are Companies A/B Testing?


What Exactly Are Companies A/B Testing?

When William Sealy Gosset invented the A/B test more than a hundred years ago, he had no idea that he had created the perfect test for Internet businesses. The A/B Test dates back at least to 1908, when William Sealy Gosset, writing as “Student”, developed his t-test to identify the best barley for brewing beer […]

Understand & Avoid Projection Bias To Increase Your Conversions


Understand & Avoid Projection Bias To Increase Your Conversions

What you believe to be true and what is actually true may be two entirely different things. I can’t tell you how many times I have said the following when discussing conversion optimization and internet marketing in general: “If you get caught up in your own beliefs and think you’re always right, it’s likely you […]

ONA15 Sessions That Data-Driven Content Publishers Will Love


ONA15 Sessions That Data-Driven Content Publishers Will Love

We’re on the road again! This time, the Experiment Engine team is excited to be making an appearance next week at ONA15 Los Angeles, a conferences hosted by the Online News Association. It looks to be an excellent event for publishers and we’re happy to see some great data-driven topics on the schedule. Drop by […]