Customers choose VWO for its feature depth, all-in-one optimization capabilities, legacy in the CRO space, and amazing customer support.
Running experiments could slow down your website. But with VWO, you get the fastest experimentation platform in the CRO industry.
Install VWO SmartCode once and run countless client-side experiments. Set up experiments easily, as VWO has just one code snippet to enable your entire experimentation cycle.
The speed of our server-side experimentation is exceptional because SDK API decisions are executed without requiring any external calls. As a result, you can conduct experiments on our SDKs with minimal latency across all your applications.
Install VWO SmartCode once and run countless client-side experiments. Set up experiments easily, keep your website fast and SEO friendly, and access all VWO products.
While using Optimizely, to set up campaigns, you have to switch between snippets and mini snippets to access different product offerings. This reduces your overall ease of use.
We introduced several firsts in the CRO space, including the visual editor, dynamic CDN, asynchronous code, testing inside shadow DOM, and dimension-level reporting.
VWO's innovative technologies allow real-time manipulation of web page content without affecting the underlying code. Their DOM parsing and modification tech changes web pages, while the reverse proxy enables dynamic insertion of JavaScript code for third-party scripts or tracking codes without affecting performance.
VWO's Dynamic Content Distribution Network (CDN), developed using OpenResty + Lua, serves dynamic content at scale (over 30k requests per second) based on incoming traffic and A/B tests. This can be used to optimize personalized content delivery to users based on their location, device, behavior, or other contextual factors.
VWO developed an asynchronous solution for A/B tests that can handle even blocking functions such as page modification. While traditional asynchronous JavaScript code worked for non-blocking functions like analytics, our solution can handle non-blocking and blocking functions. This enables A/B tests without slowing down the page.
VWO developed an easy way to test elements inside a Shadow DOM, which has become a popular solution for web developers to create custom elements such as widgets. Testing these elements had been a challenge for experimentation teams, as they could not make changes to the Shadow DOM using JavaScript or CSS.
VWO's report breakdown by dimensions feature makes analyzing data for different traffic sources and devices easy. Users can define segments after data collection and use custom dimensions for targeted analysis, improving their website's performance insights.
Understand diverse customer journeys across control and variation within experiments. All this without integrating with a third-party tool such as FullStory or Hotjar, which you are required to do with Optimizely as it does not have in-built behavior analytics.
VWO is CMS agnostic and integrates with various platforms, including WordPress, Shopify, BigCommerce, Magento, Drupal, Contentful, etc. This integration allows you to test websites that are built on any CMS without the need to switch your CMS along with your testing platform. In addition, we have tight integrations with 40+ third-party tools such as Amplitude, Segment, Mixpanel, Heap, Google Analytics, and more.
The heart of VWO is SmartStats, a powerful statistical engine that lets you test for real business questions. With SmartStats, discover test results that you can rely on to make smarter business decisions.
VWO has a record-breaker response time (45 minutes) and a customer satisfaction score (99%). To help you in your experimentation journey, we have a detailed knowledge base, and our support team is available at your disposal 24*7.
We have been using VWO for almost 4 years now and the software still surprises us. It is very easy to work with and support is always available for help in case of development challenges. The extra features like heatmaps, session recordings and the surveys help us to easily monitor the entire CRO process and connect our qualitative insights with A/B tests.
Conversion Specialist
VWO’s multivariate testing feature supports testing on a larger scale along with understanding consumer behaviors and shopping habits. It is really useful for eCommerce clients as we can identify the highest converting combination of CTAs and messages from easily digestible data.
Senior SEO Executive & Outreach Lead
VWO is hands down the best tool I have ever used for planning, execution, and reporting on website testing and results. When I needed help, the VWO support staff was ALWAYS there to work with me through the details and get it right, no waiting. Now I have positive results to report to the bosses.
Digital Marketing Manager
Love that the team is so responsive and willing to help, especially on chat. It is a great feeling knowing we have support right there with us and can ask them a question at any point. Hands down the most responsive and helpful marketing software I have ever used.
Co-Founder
As data privacy regulations continue to evolve, we strive to keep your data protection practices up-to-date with the latest requirements. It's worth noting that Optimizely does not meet HIPAA compliance standards, while we constantly enhance our security controls to prioritize privacy long before any regulatory changes occur.
Everything you need to manage your optimization efforts, in one place
| Platform & Account Management |
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Optimizely |
|---|---|---|
| Account Members Add multiple people to the same account but with varying levels of access. |
Information NA | |
| Sub Accounts Create sub-accounts for different teams or digital assets. Very handy for large enterprises, and especially agencies! |
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| Internal IP Exclusion Users who access your website from these IP addresses will not be tracked in VWO. |
Y - but works differently | |
| Pages Classify your web pages into different categories to quickly create, manage and scale experiments specific to them. |
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| Integrations Seamlessly integrate with third-party tools. |
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| API Access (rate limit of 60K/month) Start and pause campaigns programmatically or pull test metrics into other dashboards. |
| Security & Compliance |
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Optimizely |
|---|---|---|
| Data Storage All VWO data is stored in one of the two data centers, as configured for the accounts |
USA, EU, India | Information NA |
| 2-Factor Authentication (2FA) 2FA provides an extra layer that protects your data from cybercrime & fraud. VWO offers both account and individual level 2FA. |
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| Activity Monitoring Review the usage history, including all activities performed by different account members within the account. |
Information NA | |
| GDPR HIPAA, CCPA, ISO 27001:2013, ISO 27701:2019, PCI DSS Compliant VWO regularly undergoes independent verification of its security, privacy, and compliance controls to meet the customers' needs. |
Yes for all, but Not HIPAA Compliant | |
| Account Alerts Set email alerts for account administrators to receive notifications for your VWO account related activities. |
Information NA | |
| Login Restriction Restrict login into your VWO app to specific city/ region/ country/ IP address. |
Information NA | |
| Single Sign On Enable single sign-on using any SAML 2.0 identity provider to authenticate members from your organization. |
| Support |
|
Optimizely |
|---|---|---|
| Support Availability The availability of our support team to respond and resolve your queries irrespective of the timezone. |
24 X 7 - Enterprise Plan | Paid* |
| First Response Time (working days only) The time it takes for our support team members to become available in your timezone for query resolution. |
4 hrs | Information NA |
| Knowledge Base Search and browse our online knowledge base for answers and documentation. |
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| Email Support Reach out to support via registered email to give feedback or raise an issue. |
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| Chat Support Reach out to support via in-app chat to give feedback or raise an issue. |
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| Phone Support Get on a call with a VWO support member to resolve your queries. |
| Customer Success |
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Optimizely |
|---|---|---|
| Self Paced Training Videos Watch our recorded training videos for every feature as per your schedule. |
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| Dedicated Account Manager A dedicated manager assigned to your account helps you every step of the way toward success. |
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| 1-on-1 Onboarding & Training Avail our end-to-end training programs to leverage your website for better conversions using industry best practices. |
Paid |
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 NowAs compared to Optimizely, VWO was more in line with their company’s CRO budget, and after a thorough evaluation they felt that VWO addressed their experimentation needs better.
Read Now
Free for 30 days. No credit card required
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We're satisfied and glad we picked VWO. We're getting the ROI from our experiments.
Christoffer Kjellberg CRO Manager
VWO has been so helpful in our optimization efforts. Testing opportunities are endless and it has allowed us to easily identify, set up, and run multiple tests at a time.
Elizabeth Levitan Digital Optimization Specialist
As the project manager for our experimentation process, I love how the functionality of VWO allows us to get up and going quickly but also gives us the flexibility to be more complex with our testing.
Tara Rowe Marketing Technology Manager
You don't need a website development background to make VWO work for you. The VWO support team is amazing
Elizabeth Romanski Consumer Marketing & Analytics Manager
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