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Tips & Tricks for Building Your Experimentation Program

A/B Testing

A/B testing or split testing is the practice of showing two different versions of a page to users to determine which one performs better. Learn about A/B testing tips and best practices that companies have used to improve conversions on their websites and mobile apps.

Optimization Intro Essentials: 5 Tips for Testing Triumphs

Optimization Intro Essentials: 5 Tips for Testing Triumphs

Are you new to website optimization? Are you an old-timer with hundreds of tests under your belt? Either way, take these tips as a foundation for any testing endeavors you may (and should) embark on. 1. Getting started: Your site is better than you think! Website optimization starts with exploration. First, it’s crucial to understand […]

5 Questions A/B Testing Will Answer


Do you ever find yourself puzzled at which site design would serve your business best? Good. You’ve come to the right place.  The possible combinations of headlines, colors, buttons, images, forms, placement, etc., are dizzying. Often times, the highest paid person’s opinion dictates the site layout based on personal hunches and preferences. Hunches are risky. Why […]

Action Words on Homepage Boost LiveChat Sign-ups by 15%

Background As LiveChat wrapped up a site redesign in 2011, they felt happy with the new website’s look and feel but were uncertain how it would perform. They wanted an elegant, beautiful website, but the primary goal, according to CMO Szymon Klimczak, was functionality. In particular, LiveChat wanted the new site to nudge more visitors […]

Less (content) is More (revenue)? A Simple, Effective A/B Test

“Testing is a way of life for us. We’re increasing our testing resources, and building testing into our long-term, strategic plans.” – Shayne Tilley, Commercial Manager, Avalanche Technology Group Introduction Here at Optimizely, we are always excited to hear about testing success stories of all shapes and sizes.  Much to our delight, for many of […]

Less is More: How SeeClickFix Improved Engagement By Reducing Visual Clutter

Background New Haven, Connecticut-based startup SeeClickFix is a social technology platform for non-emergency community issues. See a pothole on your daily commute that doesn’t seem to be getting fixed, or know of a traffic light timing glitch that should be addressed? SeeClickFix partners with local governments to have issues like these monitored and fixed. The […]

Mixergy: Optimizely’s Founder Gives Optimization Techniques You Can Implement Right Now

I did a fun interview with Andrew Warner of Mixergy and shared a few tips about how to get started with A/B testing: Dan: Yeah. Well, the first simplest thing I’ll say focus on the one thing you want somebody to do on that page. Once you’ve identified that one thing, remove almost everything else. […]

Optimizely Increases Homepage Conversion Rate by 29%

Our home page, www.optimizely.com, has a red call-to-action button letting people test their website in the Optimizely editor.     We wanted to see what effect the button call-to-action had on conversion rate, so we ran an experiment changing the button text to the following three variations: The Original Page used “Get Started!” The first […]

Optimizely Launches Super Simple Behavioral Targeting for A/B Testing

We’re psyched to announce that Optimizely now makes it possible to design A/B experiments targeted at a specific segment of your visitors.  Why is this a big deal?   Behavioral targeting enables you to run experiments targeted at, for example: new visitors, currently-logged-in visitors or visitors who have already made a purchase. Our latest Optimizely […]