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Frequently asked questions

Web Experimentation is a platform that allows you to experiment via A/B or multi-variant testing on any channel or device with an internet connection.

Implementation is as simple as pasting a snippet of code on pages where you would like to test or track goals. Tests will run as quickly as they can be added.

With our Performance Edge feature, you can run fast website experiments on mobile, websites and landing pages without slowing them down. Speed metrics run less than 50ms on average—that’s faster than a blink of an eye!

No code changes are required for Optimizely Web Experimentation. We provide project-level configuration options that allow you to choose which platform you want to use.

We are 100% PCI complaint so you can be assured that all your data is protected.

We count conversions based on unique visitors to your page through our advanced analytics system, meaning users are only counted once regardless of how many times they trigger conversions.

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Extensions for Web Experimentation

Optimizely Web Extensions are reusable templates that developers can use to create custom features for non-technical teams, saving more time where it matters most.

See all extensions

Build a culture of experimentation with Full Stack for developers.

Did you know we offer feature management and experimentation for development and product teams? Full Stack experimentation allows developers to optimize what matters most to them. Test new features before rolling them out or experiment with variations using best-in-class APIs. 

Full Stack Experimentation

Targeting & Personalization

Behavioral targeting
Connect with your customers during key moments. Trigger offers or messages based on real-time behavior, like cart abandonment or category affinity.

1st/3rd party data
Turn your own data in action. Want to experiment loyalty program or even connect with DMPs to bring in things like in-store visits and other offline data.

Adaptive Audiences
A new targeting capability that uses machine learning to dynamically create audiences from personas that you define using simple keywords.

Location-based data & demographic
Deliver unique messages, imagery or offers to customers based in key regions. Show that warm vacation getaway to your Chicago customers in the winter.

Visual editor

Create with clicks, not code
Brainstorm ideas and create them as experiments without relying on developer help using Optimizely’s industry-leading visual editor.

Analytics

Faster decisions you can trust for digital experimentation
With traditional statistics, peeking at your results any time other than your set sample size increases the chance you’ll find a winner when there isn’t one. With Analytics , check whenever you want. With a method called sequential testing, you’ll see your statistical significance increase with more time and data—no more waiting.

Always-valid Statistics
Make a statistically sound decision whenever you look at your results, as soon as data is available.

Significance on Your Schedule
No need to commit to a sample size or duration in advance. You can also see conclusive results up to twice as fast.

Leave the Stats to Us
No need to change how you experiment. Analytics works exactly the way you expect it to, without any extra work.