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VWO vs. Optimizely

Looking for a Comprehensive A/B Testing Solution?

Optimizely lets you manage and run A/B tests and personalize your website for visitors. VWO provides a data-driven testing solution that connects every step in the visitor journey to impact your conversion rates.

Request VWO Demo View Feature Comparison

CRO Platform

The All-in-One Conversion Optimization Platform

Optimizely allows you to manage your A/B testing program and offers robust personalization options. With VWO, you can bring your entire conversion optimization program on a single platform—track business goals, analyze visitor behavior, build data-driven hypotheses, run tests, and personalize content. By connecting visitor insights with tests, you can develop a continuously scalable testing program that optimizes every step in the visitor conversion funnel.

Optimizely vs. VWO - A/B Testing Feature Comparison


of companies that follow a structured approach to conversion optimization

see an improvement in their conversion rates as opposed to only 64% of companies that don’t follow a structured approach.

Source: Econsultancy Conversion Rate Optimization, 2017

Page Load Time - Comparing Optimizely & VWO

Page Load Time

We never slow you down

VWO uses asynchronous code to serve your campaign data, compared to synchronous code used by Optimizely.

Simply put, Asynchronous means that the code will contact VWO servers in the background, download and process the test package while the rest of your page continues to load and render in the browser as usual. It’s what keeps your visitors’ screens from flickering.

Optimizely’s Synchronous code makes the browser wait until Optimizely can deliver the test package, long enough for visitors to notice.

And in the improbable case of our servers being unavailable, the original page gets loaded, ensuring that your visitors' experiences remain unaffected.

Note: Optimizely offers asynchronous code however they recommend synchronous code.

Multiple Products

The Right Match for Your Business

Whatever your business needs are, VWO can deliver.

A/B testing

A/B testing for Beginners

If you’re just starting out and want to see how testing can affect the conversion rate, choose the VWO Web Testing Solution that allows you to run tests (A/B, Multivariate, and Split) and conduct basic visitor behavior analysis by using Heatmaps.

cro experts

CRO Experts

To continuously impact your bottom line with better conversions, choose the all-in-one Conversion Optimization Platform that enables you to track testing goals, analyze visitor behavior, define goals and conversion funnels, run tests, and personalize content.

SmartStats Engine

Greater Control over Testing

VWO lets you make smarter business decisions from your testing campaigns by choosing from among 3 different modes of testing:

Quick Learning

Quick Learning

Gets you faster results. Great for finding quick trends.



Helps you make smarter decisions. Ideal for most tests.

Maximum Certainty

Maximum Certainty

Allows you to plan better. Best for revenue-critical tests when you want to absolutely minimize potential loss.

Bayesian Statistics - VWO
Compare Optimizely and VWO Pricing

Flexible Pricing

Flexible Pricing Model to Accommodate Your Unique Needs

If your team wants to run tests on multiple domains from a single account, that’s not a problem. VWO has a flexible pricing plan that allows you to pay by the average number of unique monthly visitors on your website, no matter how many domains you run tests on within that visitor quota.

Hands-On Support

We Help You at Each Step along the Way

Guided onboarding

Guided onboarding

Spend more time producing results than looking for answers, with in-app guided onboarding and up-to-date knowledge base of all the information you would ever need.

24x7 support

24x7 email, phone, and chat

Better still, our dedicated Customer Success Managers will help you set up your Enterprise account and get testing immediately.

hands on support

Hands-on support

However, if you do need to contact VWO, you can count on hands-on support across multiple channels, whenever you want.


VWO Is Trusted by 4500+ High-Growth Brands

ubisoft logo
ebay logo
Payscale logo
SRG logo
Target logo
Virgin Holidays logo

Colart chose VWO over Optimizely

While evaluating between VWO, Optimizely and other A/B testing tools, Colart, one of the leading art brands in the world, found VWO was the right web testing and conversion optimization solution for their business.

Read this case study to find out why they chose VWO.

It was important to select an all-features-in-one tool that allowed testing on multiple domains from a single platform.
Patxi Gadanon

Patxi Gadanon

Senior Web Manager, Colart

Feature Comparison

See how Optimizely compares with VWO

VWO logo optimizely Logo
Visual Editor Check icon Check icon
Code Editor Check icon Check icon
A/B Testing Check icon Check icon
Multivariate Testing Check icon Check icon
Split Testing Check icon Check icon
Testing Quota Usage Use as you like Restricted usage
Visitor Counting Logic Count once per month across all campaigns (In the CRO platform) Count once per month across all campaigns
Server-Side Testing - Available only in Optimizely X
Multi-Page Tests Check icon Check icon
Heatmaps Check icon -
On-page Surveys Check icon -
Session Replays Check icon -
Form Analysis Check icon -
Testing Goals Check icon Check icon
Always-on Goals Check icon -
Define Funnels Check icon -
Log Observations Check icon -
Test Learnings Check icon Check icon
Personalization Check icon Check icon
Behavioral Targeting Check icon Check icon
Custom Targeting Check icon Check icon
Upload Segments - Check icon
Statistics Bayesian Sequential Statistical Method
Single Sign-On - Check icon
Two-Factor Authentication - Check icon
Self-Hosting Check icon -
Support Available 24x7 (email, phone, chat, and in-app) Limited support (separate priority support add-on)

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Get in touch with us for a detailed walk-through of VWO.

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