Download our FREE ebook of 43 A/B testing case studies from the world's leading companies for test ideas and inspiration. Download Now

Optimizely Blog

Tips & Tricks for Building Your Experimentation Program

Optimizely’s New Funding Puts Digital Experiences into Overdrive


We’re pleased to announce we have secured $105 million in financing, including $50 million in Series D funding. Goldman Sachs Private Capital Investing is the lead and we are very excited to include Accenture Interactive as a strategic minority investing partner. An additional $55 million in financing will be coming from Bridge Bank. These funds, […]

Powerful Feature Flags in Node Express Server


Feature flags allow you to slowly rollout a feature gradually rather than doing a risky big bang launch and are extremely helpful when used in a continuous integration and continuous delivery environment. At Optimizely, we commonly use feature flags to reduce the risk of complicated deploys like rolling out new APIs. However, building a feature […]

Retail:The Rebirth Continues


My one-time boss, Publicis Strategy Head Rishad Tobaccowala once opined with his trademark blend of sagesse and wit, “The trend is your friend.” Those four words work equally well in the worlds of investing, marketing and business development. As we enter the nth phase of ‘software eating the world’, in this case, retail, the signs […]

Powerful Feature Flags in React


Feature flags allow you to slowly rollout a feature gradually rather than doing a risky big bang launch and are extremely helpful when used in a continuous integration and continuous delivery environment. At Optimizely, we commonly use feature flags to reduce the risk of complicated deploys like rebuilding UI dashboards. However, building a feature flagging […]

Highlights: Swift SDK Beta, Improvements to Datafile Management, Decision Notification Listener Updates


This month, we’re excited to announce the release of our Swift SDK beta, major improvements to our Javascript SDK datafile management capabilities, and updates to the DECISION listener notification.   Release of Swift SDK 3.1.0 Beta The Optimizely X iOS Swift SDK 3.1.0-beta is written completely in Swift and uses all of its native types and […]

Experimentation: The Data-Driven Path to Company Consensus


I recently joined Optimizely as the Head of Content. Having been on the advertising agency side of the universe, experimentation to date, had not been de rigeur for me. The bulk of my career has been as a ‘creative’ where ideas can over-index on ‘coolness’ vs. effectiveness, so the rigor and discipline of experimentation is […]

4 Key Takeaways from Our Virtual Product Experimentation Summit: Test and Learn


4 Key Takeaways from Our Virtual Product Experimentation Summit: Test and Learn

Last week we held our first-ever virtual product experimentation summit: Test & Learn! Around 1,500 professionals spanning product, design, analytics, marketing, engineering, and growth roles joined us live for the half-day master class in experimentation. There was incredible engagement across all of the sessions, and below, you’ll find some valuable insights from the event. You […]

Stop Launching.
Start Rolling Out.


Stop Launching. <br/> Start Rolling Out.

Splashy, big-bang launches were once the most common way software companies released new software. Product and engineering worked tirelessly to get a new product or feature ready while marketing and PR feverishly prepped launch materials. They often even put together extravagant launch parties to celebrate the occasion. But for every successful big bang launch, there […]