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VWO Testing - Web

Boost conversions with versatile client-side testing

Effortlessly test any client-side experience. Transform concepts into experiments, discover actionable insights, improve website conversion rates, and achieve outstanding results.

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All State
Payscale
Ubisoft
turbotax
Paytm
ui path
Emerson
Carrier
Amway
nvidia
Smart recruiters
Zoominfo
All State
Payscale
Ubisoft
turbotax
Paytm
ui path
Emerson
Carrier
Amway
nvidia
Smart recruiters
Zoominfo

Scale web experimentation across devices easily

VWO Testing empowers you with the flexibility to optimize every aspect of your web presence, enhancing the digital experience for both desktop and mobile web visitors.

Setup test variations easily

Get testing in a few clicks

Unleash endless testing with A/B, Split URL, and Multivariate tests. Make swift edits through the visual editor or sophisticated changes with the code editor.

Test fast without impacting page load

Test sans performance issues

Say goodbye to slow page loads, privacy issues, SEO woes, and flash of original content (FOOC). VWO's SmartCode is fast, secure, and private.

Optimize any metric

Optimize any metric you want

Optimize vital business metrics such as conversions, and revenue with ease. Integrate external sources like CDP for added precision and protect critical KPIs with guardrails.

Make reliable decisions with Bayesian stats

Make reliable decisions

Make confident decisions with real-time, sequentially valid Bayesian reports. Use report filters to get granular insights and easily integrate with analytics tools for further analysis.

Integrate VWO with your tech stack

Seamless integration

Easily integrate VWO with your tech stack, including analytics, CDPs, and e-commerce systems, with a click and popular CMS via user-friendly plugins.

UUID stitching in VWO

Deliver uniform experiences *Coming Soon

VWO ensures a consistent experience, regardless of browser, device or operating system so your visitors can switch devices and browsers without any disruption.

Mutually exclusive groups on VWO

Experiment sans visitor overlap

Eliminate visitor overlap with mutually exclusive test groups. Prioritize experiments, maintain clean reports, and ensure accurate attribution.

Experiment on single-page applications

Experiment on SPAs

Experiment on SPAs. VWO supports SPAs with or without URL changes, including popular frameworks like React, Gatsby, Next.js, Vue.js, Angular, and more.

Traffic allocation through multi-armed bandit algorithm

Race to the better variations

Race to your experiment winners with dynamic traffic allocation powered by our multi-armed bandit (MAB) algorithm. Perfect for time-sensitive campaigns such as discounts.

Run cross domain experiments

Experiment across domains

VWO tracks visitors and goal conversions even across different website domains enabling you to run cross-domain experiments.

Run experiments across devices

Experiment across devices

Monitor how test variations affect key metrics across different devices. VWO ensures a seamless visitor experience, enabling hassle-free testing across all devices and responsive websites.

Make changes to pages simultaneously

Simultaneously edit multiple pages

Apply consistent experiences across multiple pages with VWO's page grouping feature in one go. You don't have to repeat the changes everywhere manually.

Make data-backed optimization decisions

VWO's reports, backed by Bayesian statistics, are sequentially valid and right whenever you look at them. The reports enable you to assess whether your variations will likely outperform, underperform, or match the control and take decisions accordingly in half the time.

Optimize metrics that matter

Handpick primary and secondary metrics for testing, whether standard or custom, even integrating events from other tools like CDPs.

Creat variations with WYSIWYG editor

Test with business safety *Coming soon

Ensure your optimization experiments do not impact critical business KPIs negatively by enabling guardrail metrics.

Add code to variations using code editor

Take decisions with confidence

Rely on Bayesian-powered Sequential Smartstats for precise, trustworthy results. VWO’s stats engine ensures accurate results by handling peeking and multiple testing errors.

Use GPT power 3.5 AI copy generator

Uncover granular insights with filters

Filter experiment reports by default options or custom dimensions for actionable insights. Tailor report views and compare metrics for a complete analysis.

Create and trigger widgets when possible

Collaborate easily

Share experiment reports via email links, export concise summaries or detailed reports as a CSV, and even print reports to facilitate collaboration.

Setup campaign changes flexibly

Turn your ideas into testable variations

Transform your concepts into test-ready variations swiftly and efficiently. Create multiple versions of your ideas that will help optimize considered metrics.

Explore VWO Editor

WYSIWYG Editor
Instantly create web variations with VWO's drag-and-drop editor, change text, images, sections, and even elements in shadow DOM. Customize hidden elements easily, and enjoy version history for undoing, redoing, and saving changes until you're satisfied.
Code Editor
Write, import, and organize code for advanced changes. Add HTML/CSS/JS code directly to your browser, import external scripts, and have the flexibility to add pre or post-campaign code.
AI-powered copy generator
Say goodbye to writer’s block. VWO’s copy generator is powered by GPT 3.5 Turbo and helps you instantly create copy variations. Enhance visitor engagement using condition-based personalized dynamic text within VWO.
Use, Trigger, or Create Widgets
Enhance your webpage with ready-to-use widgets and personalized messages. Choose from pop-ups, countdown timers, banners, and trigger widgets based on user actions. Code custom widgets when needed, save them to your library, and deploy them in a snap.
Flexibility
Flexibly apply changes. Define changes for specific pages, devices, or apply them universally. Craft SPAs and manage changes post-load with VWO's SPA/SSR settings.

WYSIWYG Editor

Instantly create web variations with VWO's drag-and-drop editor, change text, images, sections, and even elements in shadow DOM. Customize hidden elements easily, and enjoy version history for undoing, redoing, and saving changes until you're satisfied.

Code Editor

Write, import, and organize code for advanced changes. Add HTML/CSS/JS code directly to your browser, import external scripts, and have the flexibility to add pre or post-campaign code.

AI-powered copy generator

Say goodbye to writer’s block. VWO’s copy generator is powered by GPT 3.5 Turbo and helps you instantly create copy variations. Enhance visitor engagement using condition-based personalized dynamic text within VWO.

Use, Trigger, or Create Widgets

Enhance your webpage with ready-to-use widgets and personalized messages. Choose from pop-ups, countdown timers, banners, and trigger widgets based on user actions. Code custom widgets when needed, save them to your library, and deploy them in a snap.

Flexibility

Flexibly apply changes. Define changes for specific pages, devices, or apply them universally. Craft SPAs and manage changes post-load with VWO's SPA/SSR settings.

Optimization capabilities that suit every industry

Configurations that enable endless testing possibilities

Conduct multiple experiments simultaneously, validating your hypotheses on your terms. Configure tests to run on specific schedules or code-based custom triggers, control privacy settings for each test, and experiment with complete freedom. 

A/B tests

A/B Tests

Continuously experiment with various website versions through A/B testing to identify the most effective versions that enhance your conversion rates.

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Multivariate test

Multivariate Tests

Multivariate Testing lets you assess a diverse set of alterations for your landing pages, from just a few to potentially hundreds, all simultaneously.

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Split url tests

Split URL Tests

Split URL testing, you can assess your website's redesign by diverting traffic between two separate URLs associated with the same landing page.

Learn more
Choose Pages

Select the pages you want to test

Choose URLs of web pages or single-page applications that you want to test. You can select a set of URLs using regular expressions or include and exclude individual URLs from your tests. Create imaginary custom URLs to experiment even on pages and SPAs that do not follow a standard URL pattern.

Select the pages you want to test
Create Variations

Make all your test ideas come to life

Create as many test variations as necessary with VWO’s WYSIWYG editor. Make sophisticated changes with the code editor and add widgets to your variations as required. Preview your variations across mobile and desktop to ensure they work as expected.

Make all your test ideas come to life
Choose Metrics

Choose the metrics that you aim to improve.

Choose the metrics you want to optimize and prioritize them. Select from VWO’s default metrics options, create custom metrics or import events from CDPs like Data360 or Segment.

Define metrics that you aim to improve
Setup Audience Segment

Tailor your test audience

Select your test audience based on parameters such as visitor type, OS, behavioral data, and even historical data from third-party sources such as customer data platforms (CDPs), and tag managers. Build complex selection criteria with logical operators such as AND and OR for finer audience selection.

Tailor your test audience
Triggers

Decide when to trigger tests

VWO offers extreme flexibility to configure test triggers based on your custom interactions. You can use any visitor action or construct complex trigger criteria for your tests. You can further refine your test audience by selecting only visitors who complete the configured actions and fall within the trigger criteria.

Decide when to trigger tests
Reporting

Make business decisions based on reliable data

Get reliable, accurate results with VWO’s Bayesian-powered Sequential SmartStats. VWO gives enhanced reports that answer your business questions and give you insights into whether your variations are better than control, equivalent to control, or worse than control, empowering better decision-making. You can forward reports to analytics tools, export them, or share them with your team for easier collaboration and analysis.

Explore VWO Reports

Make business decisions based on reliable data
Web Rollouts

Maximize conversions immediately

Don’t wait for developers to push the best variation. Reduce idle time and roll out the best variations immediately to maximize conversions with VWO Rollouts. Fix small misses like broken links, and spelling errors yourself without going back and forth with the development team.

Explore VWO Rollout

Maximize conversions immediately

High-speed testing powered by asynchronous SmartCode

One-step setup

VWO’s SmartCode has to be deployed only once. You can use the unified deployment interface to deploy the SmartCode just once across all your testing environments, including websites, mobile sites, SPAs, Shopify stores, and CMS, to get started with testing instantly.

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Lighting fast page loads

The SmartCode is asynchronous, loads changes parallel to your website, and has little to no impact on your website load time. VWO’s SmartCode, combined with our global CDNs, ensures that your changes load blazing fast. VWO SmartCode’s impact on Total Blocking Time(TBT) on your website performance is the best in the industry, and our latest update makes it 36% faster, further increasing the gap with our competition. *source.

Learn more

Seamlessly integrates with your tech stack and single-page applications

VWO offers out-of-the-box one-click integration with tools spanning different categories such as analytics, CMS, call tracking, Customer Data Platform (CDP), e-commerce, marketing, productivity, and storage services. 

Connect VWO with your tech stack

Extensive Integration Library

VWO offers a wide range of third-party tool integrations for all your needs. VWO even offers plugins for specific CMS like WordPress and e-commerce applications like BigCommerce.

Secure, one-click configuration

Seamlessly integrate your tech stack with VWO in just a click. Once your applications are integrated with VWO, you can enable specific integrations while configuring experiments.

Real-time data sync and notifications

Instant data synchronization with analytics empowers data-driven decision-making. Get instant campaign notifications by integrating VWO with productivity apps like Slack.

CMS Agnostic Testing

Unlike a few testing applications that encourage moving you to their CMS, VWO integrates with CMS that you use, such as WordPress, Drupal, and more, to enable testing.

Drive your entire optimization program with VWO

Pair Testing with our end-to-end experience optimization platform to enable a data-driven experimentation culture in your business.

Collaboratively build your optimization pipeline

Build a pipeline of experiments with personalized AI-generated optimization ideas for your website powered by GPT-4. Collaborate easily and see them to completion. Build a Kanban board workflow with observations to feed your testing and personalization campaigns. Add team members without restrictions and run your optimization program like a breeze.

Explore VWO Plan
Use VWO Plan to collaborate and prioritize tests

Testing for your entire stack under one roof

Whether you have a website or mobile app, we provide SDK-based testing for all technologies. VWO’s secure, open-source, lightweight SDKs in 8+ languages in both front-end and back-end languages enable you to run complex experiments while delivering a uniform user experience.

Explore Mobile App Testing Explore Server-side Testing
Conduct tests for your entire tech stack including client, mobile, and server
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Alex Kantore
Ilse Normington
Marc Contorion
Parvez Panjwani
Beatriz Yanagui
Fred Ishola
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Dave Nevogt
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SmartCode that ensures compliance and privacy

VWO adheres to data protection regulations and does not collect sensitive information. The only information that VWO collects about a cookie is a visitor ID (UUID), containing no personal data.

Ensure compliance and privacy

Compliance

Customer trust is the top priority for VWO. Keeping data secure and compliant is paramount to us. We at VWO leave nothing to chance and regularly undergo independent verification of our security, privacy, and compliance controls. We strive to achieve certifications, and attestations of compliance and undergo regular audits for all relevant standards, regulations, and frameworks around the globe.

Privacy

VWO cannot identify or track any individual or consumer. VWO also anonymizes personally identifiable information (PII), such as email addresses, phone numbers, etc. You can implement the SmartCode through the reverse proxy methodology for additional control over data sent to VWO servers. You can restrict critical or confidential data from being sent to VWO as your servers act as middleware between your website and VWO.

Get enterprise-grade security and support from day one

Work confidently, knowing that we have always got your back for your security and support. Build and scale your testing programs with ease.

Your data is safe and secure with us

We value our customers' trust in our platform. Hence, we try our best to comply with security and privacy mandates across physical and digital geographies.

Explore Privacy & Security
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International Organization Standardization Certification
International Organization Standardization Certification 27701
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Hipaa Compliant Logo
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Two-factor authentication (2FA)

Enhance VWO account security with two-factor authentication at the user or workspace level using authenticator apps or email passcodes.

Data storage

VWO has data centers in the US, the EU (Belgium), and India. Our CDN uses a load balancer, is hosted on Google Cloud Platform, and spans 10 locations from Japan to Brazil for faster loading.

Dedicated customer success manager

Leverage our training programs and dedicated success manager to optimize your website for better conversions.

Support with a constant CSAT of ~99%

You can count on us all year round for your most minor query while running the most complex experiments. Our technical experts will guide you all year round.

Single sign-on (SSO)

Log into VWO securely and conveniently using SAML 2.0-based single sign-on via identity providers like Google, Azure Cloud, OneLogin, Okta, and others.

Role-based permissions

Get Sub-accounts and varying levels of user permissions to bifurcate testing for client/agency and role division for the enterprise.

We're excited to work with you. Let’s connect to achieve your conversion goals.

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Frequently Asked Questions

VWO Testing is the world's leading web testing (a/b testing, split testing, multivariat testing) and conversion optimization platform that enables growing businesses to optimize their web experience across desktop, mobile, tablets, and other devices to deliver unique experiences and convert visitors into engaged customers.

No, the use of VWO does not have a negative impact on your website ranking. For A/B tests and Multivariate tests, both the control and variations run on the same URL, and VWO makes test changes on the fly. There is no scope for content duplication, which otherwise can affect your SEO ranking. Even though Google crawlers support JavaScript and the variation page of the A/B test campaign can be crawled by Google bots, they do not affect the performance of the A/B website. Google also had its own A/B testing solution that would not exist if such tests affected the website rankings.

VWO Testing supports A/B tests, Split URL tests, and Multivariate tests. You may run any number of tests simultaneously per your requirements.

1. A/B testing is the practice of comparing multiple variations of elements on your webpage at a time and picking out the best. A/B testing is best suited for testing an isolated element like a CTA button or a headline.
2. Multivariate (MVT) testing is a method wherein you make changes to multiple sections on a webpage and create variations for all the possible combinations that result from those changes. These tests are used to determine what combination of elements works best for your audience.
3. Split testing is the method of testing multiple variations of your website hosted on different URLs. Split URL testing is used when you have completely revamped your website or application.

To choose the right metrics for A/B testing, consider your specific goals and objectives, and focus on primary metrics tied to those goals (e.g., conversion rate for sales). We recommend adding secondary and guardrail metrics to your tests to ensure that the test results are not misleading and your tests do not hit important business KPIs. Ensure selected metrics are relevant, measurable, and aligned with your business objectives.

No. VWO is built to scale without any compromise in performance. You can run any number of concurrent tests with as many variations as possible.

VWO is a reliable tool that enhances your website for visitors. To make the most of it, make note of the key steps mentioned here when creating tests at every stage. This will ensure the best results for your website testing.

Common mistakes to avoid in VWO Testing include not setting clear goals, testing too many changes at once, neglecting mobile responsiveness, and not running tests for a sufficient duration. You can get to know more about warnings and errors while running tests from this article.