CRX id
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Description from extension meta
Detects A/B testing tools and experiments on the website
Image from store
Description from store
🚀 A/B Test Identifier – Instantly Uncover A/B Tests on Any Website
-Welyft A/B Test identifier is the ultimate Chrome extension for professionals in Conversion Rate Optimization (CRO), User Experience (UX), and web performance analysis.
-With a single click, detect hidden A/B tests, multivariate experiments, and dynamic personalization on any site you visit.
🔍 Key Features
-Automatic detection of leading testing & personalization platforms:
Optimizely, AB Tasty, VWO, Kameleoon, Dynamic Yield, ( and more to come)
-Reveals active experiments and variations – often includes test or campaign IDs.
-Compatible with e-commerce stores, SaaS platforms, landing pages, and marketing sites.
-Lightweight & privacy-first: no tracking, no data collection.
👥 Who It’s For
-CRO and Growth Marketers – uncover competitor testing strategies
-UX/UI Designers & Web Analysts – enhance audit speed and depth
-Front-End Developers & QA Testers – identify unexpected changes
-Digital Consultants & Curious Explorers – spot optimization tactics on the fly
📈 What You Can Do
-Reveal A/B tests and personalization tactics on live websites
-Identify testing tools used by competitors or clients
-Accelerate UX audits, QA processes, and site evaluations
-Stay inspired by real-world experimentation examples
❓ FAQ – Frequently Asked Questions
How does A/B Test identifier identify experiments?
-We use public front-end APIs exposed by A/B testing and personalization tools to collect experiment metadata. These APIs are typically available in the browser for testing/debugging purposes.
Can the extension collect data from my experiments?
No. A/B Test identifier only detects publicly exposed information, such as:
-The experiment name
-The type of experiment (e.g., A/B test, personalization)
-It does not collect or expose private data, such as audience segments, performance metrics, targeting rules, or results. The extension operates read-only and does not send any data outside your browser.
What types of tests can it detect?
-A/B tests
-Split URL tests
-Multivariate tests
-Dynamic content personalization
Depending on the tool and setup, it may also detect which variation is being served.
Which testing tools are supported?
-We support a wide range of platforms including:
-Optimizely, AB Tasty, VWO, Kameleoon, Dynamic Yield, (and more to come)
The detection engine is regularly updated to stay current with the ecosystem.
Why am I not seeing any tests?
Several possible reasons:
-Cookie consent not granted – some tests require marketing cookies to activate.
-Unsupported platform – we may not yet support the tool in use.
-Server-side test – server-side experiments often don't expose client-side data.
-No active experiments – the site may not be running any tests at the moment.
Does the extension send any data to Welyft?
-Absolutely not. All detections happen locally in your browser. No data about your browsing or detected experiments is sent to Welyft or any third party.
Changelog:
1.2 : Fix on Kameleoon & ABTasty API
Latest reviews
- (2025-06-04) K N: Works great, and grabs all the experiments from various platforms. I would like to see even more platforms support. Keep up the amazing work!
- (2025-05-23) Pierre Lalliot: Extremely useful extension for anyone working with AB tests and experimentation. I'm able to see what tests and personalizations are running on any given site, allowing me to find inspiration for my own testing strategy.
- (2025-05-21) Antoine Guineaudeau: must have for CRO professionals
- (2025-05-19) Clément Hornec: Objectively speaking (or almost 😅), the must-have extension when doing CRO or working on customer experience! Feel free to reach out if you have any feedback! 😉 See you soon! 🕵️♂️
- (2025-05-19) amaury ortolland: A must have for every A/B test agency, I use it everyday
Statistics
Installs
244
history
Category
Rating
5.0 (15 votes)
Last update / version
2025-07-01 / 1.2
Listing languages
en