Increases Security Options After Optimizely Information Leak Increases Security Options After Optimizely Information Leak

Convert announcement

We are announcing a range of security and privacy features after yesterday’s security report by VentureBeat. The report was about the information leaking on Optimizely’s client sites. The leak apparently affected 110,000 websites including those of Starbucks, ADP and CNN.

We are proud to announce a range of privacy updates to their infrastructure to prevent spying on A/B tests that are performed by our clients. Our goal is to prevent clients’ data being publicly visible and exposed.

Today, opens its A/B testing software” href=””>A/B testing software new “Data Anonymization” feature. This feature is available to all clients from the small business plans of $29, to the enterprise plans at no additional cost. The feature also allows to hide test specifics that allow spies to see privacy sensitive data to identify interesting tests run by clients. is focused on privacy for it’s clients. Since we started way back in August of 2009 as one of the first A/B testing tools with a visual editor we already implemented privacy features at the level of current European regulations. These regulations are strict in IP storage and targeting clients. We decided at the start of the company that privacy was important and that we would never allow IP storing and IP targeting, for example.

Data Anonymization is a highly recommended new feature for all’s users. The feature improves privacy by removing naming of all projects, variations, segments and goals for the JavaScript stored on’s secure CDN infrastructure.

Convert Experiments, the testing software of will undergo even more improvements to ensure privacy over the next week. The will be“removing all paused variations of running, and completed experiments will give little to no insights into what variations were competing against each-other. We will be turning on the Data Anonymization option on by default for all clients over the next weeks” according to Van der Heijden.

According to Van der Heijden. “Convert Experiments stores variations and targeting of A/B tests on the secure CDN’s. We never publish paused, draft or archived experiments to prevent spying on our clients’ accounts. In addition, Convert changes the code script for clients, making it harder to identify Convert clients’ using scrapers now used.

Brian Massey, Conversion Scientist at Conversion Science and author of “Your Customer Creation Equation,” is one of the leading authorities in the field of Conversion Rate Optimization (CRO). As a user of, he shared his opinion on recent events: “Slow-executing tests make our results less reliable. Sending all test data at once offers an important speed improvement. We believe that Convert Experiments has come up with the best solution that balances the quickness we need without exposing our work to casual spies.”

Kelcey Parker another US agency using says: “As an agency (Nitro Interactive Marketing) with clients of all sizes, from small shops to Fortune 500 companies, it’s incredibly important for us to keep our testing practices private and secure. When experimenting with elements like layouts, images, copy, or pricing, we don’t want competitors to see what we’re up to. is already a very secure platform, and they’re adding even more protections in response to recent events. We’ll stick with”

Security Improvement










PS: Did you know Optimizely Pricing and Enterprise Pricing changed, see here?

Originally published June 04, 2014 - Updated April 15, 2019
Dennis van der Heijden
Co-founder and CEO of, Dennis is a passionate community builder and out of the box thinker. He spends his time innovating to make Convert Experiences better. Learn about his journey as an entrepreneur and leader on the SaaS Club podcast.
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