Launching a continuous A/B testing program
CRO & Experimentation Program
Turn your visits into measurable growth
- AB Tasty
- Kameleoon
- Dynamic Yield
- and 3 other tools
EXPERIMENTATION · A/B TESTING · CRO
Integrate experimentation within your organization
Experimentation is not a collection of tests: it's a discipline. Without statistical rigor, a test provides no certainty, only an illusion of proof. We support you in structuring a robust approach by providing the method and data expertise needed to secure your decisions and accelerate your growth.
Your challenges
Do these challenges resonate with you?
Signals that should raise alerts
- No A/B test launched in the last 6 months
- No backlog of prioritized hypotheses
- Product decisions made without reading the data
The right time to act
- Your conversion roadmap still relies on intuition
- You are launching a new journey or a redesign and need to secure the go-live
- You have traffic but few structured tests in production
Maturity diagnostic
Where do you stand?
The « CRO & Expérimentation » diagnostic maps your position pillar by pillar, with your areas for improvement.
- 30 statements
- 10 min
- Free, no account needed
A preview of your result
Our offers
8 offres Experimentation
Identify what's holding back your conversions
CRO audit
Find what's holding back your conversions
- GA4
- Piano
- Contentsquare
- and 2 other tools
Delegate the development of your A/B tests
A/B Testing Execution
Multiply your tests in production
- AB Tasty
- Kameleoon
- Dynamic Yield
- and 3 other tools
Make your listing pages sell
Merchandising optimization
Make your list pages sell, proven by the test
- Algolia
- Dynamic Yield
- AB Tasty
- and 2 other tools
Make your teams self-sufficient in CRO
CRO Coaching
Gain autonomy in CRO
- AB Tasty
- Kameleoon
- GA4
- and 2 other tools
Quantify the ROI of your CRO program
Calculating the ROI of a CRO program
Quantify the real value of your CRO
- GA4
- Piano
- AB Tasty
- and 2 other tools
Understand your journeys through user testing
User Testing & Research
Understand why your users drop off
- Maze
- Lookback
- UserTesting
- and 3 other tools
- Book an appointment
Let's discuss your project
A need spanning several offers? We'll scope the right setup with you.
WHAT IS EXPERIMENTATION?
Experimentation = User testing + A/B testing
Experimentation is an essential lever for accelerating the product discovery process by enabling quick validation of key hypotheses.
Whether A/B tests, user tests or prototypes, these approaches offer a direct way to test your ideas under real conditions and get concrete feedback from the earliest stages.
This allows product teams to focus their efforts on solutions that truly meet user needs, while avoiding unnecessary investments.
Well-scoped tests, launched at the right pace.
Our principles
Rigor before volume
AI multiplies testing: hypothesis, KPI and power are set before coding.
The expert decides, AI agents execute
They score hypotheses, code the variants and monitor every test.
A data-driven, conversion-focused approach
We track the learning rate: the share of tests that lead to a reliable decision.
Why experiment
Experiment to maximize your growth and the quality of your customer journeys
Data analysis, user testing and benchmarking identify where your visitors drop off, and why. A/B testing then proves which version improves their journey, step by step.
Benefits
What you you gain
Validate your hypotheses using experimentation methods & improve your performance.
Improve the quality of your Discovery
By comparing your current journeys with direct user feedback to identify their real friction points.
Reduce product development risks
By rapidly iterating on your hypotheses using interactive prototypes before committing a single line of code.
Secure your business performance
By measuring the real economic impact of each new feature through A/B testing on a fraction of traffic before full-scale deployment.
CRO maturity diagnostic
Where does your experimentation program stand?
Walk away with a clear view of your maturity: rate your agreement with concrete statements, Welyft calculates your profile pillar by pillar.
- A score out of 100 and your maturity level
- The web of your 5 pillars: strengths and gaps at a glance
- Your areas for improvement and the first levers to activate
- 30 statements
- 10 min
- Free, no account needed
A preview of your result
62/100
Example profile. Rate the first statement: the Stratégie & Culture pillar takes your score.
Start here1 / 30
Pillar 1 of 5 · Stratégie & Culture
L’expérimentation a des objectifs chiffrés, suivis par la direction.
Your level of agreement, from 0 to 10.
Strongly disagreePartiallyStrongly agree
Hover over a score: the web adjusts.Tap a score to start the diagnosis.
To go further
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Best statistical confidence calculators for A/B Test
In the field of CRO (Conversion Rate Optimization), the reliability of A/B test results is essential for making
A/B Test Example - Discover the Tops and Flops in CRO!
Did you miss our exclusive webinar on conversion optimization? No worries, the replay is available!
Is the scheduled end of Google Optimize putting your experimentation strategy at risk?
Recently, Google highlighted AB Tasty as a potential alternative for your A/B testing platform.
Bayesian vs Frequentist: which method for your A/B tests?
Finally understand the difference between Bayesian and frequentist statistics to optimize your A/B tests.
What are the success KPIs of a CRO program?
An experimentation program is not just a succession of A/B tests launched in the hope that an uplift will appear.
CRO Maturity Audit: Methodology and Process
A CRO maturity audit assesses an organization's ability to optimize its performance through method
Our expertise
Explore the other pillars
You are browsing the pillar Experimentation. It works with five other areas of expertise, to be combined according to your maturity and priorities.
UX & Experience
Create a frictionless, conversion-oriented experience.
Personalization & CRM
Proactively serve the right content to the right person at the right time to create a unique experience.
Data & Analytics
Turn your data into a lever for decision-making and activation.
Training
Turn your teams into conversion engines, augmented by AI.
Agentic commerce
Deploy AI agents, make your catalog readable by AIs and convert the traffic they send you.
Maturity diagnostic
Where to start?
In ten minutes, map your organization pillar by pillar and identify the first levers to activate.
FAQ
Vos questions fréquentes
How many tests need to be run to get reliable results?
The number of tests matters less than the statistical rigor of each one. We size the duration and traffic volume required before launch so that every test produces proof, not an illusion of proof.
Is A/B testing enough, or is user testing also needed?
The two are complementary: user testing explains why your visitors drop off, A/B testing measures the real impact of a solution. Combined, they speed up product discovery and strengthen your decisions.
Do you need a dedicated internal team to get started with a program?
No. We provide the method and data expertise at the start, then gradually transfer our practices to your teams. The goal is for experimentation to become an established discipline within your organization.
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