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UX & Experience

Conversion-driven redesign

Redesign while securing your conversions

Rethink your site: remove business blockers, modernize your journeys and maximize your conversion rates while securing technical performance and accessibility.

They trust us+70 clients

  • L'Oréal
  • Canal+
  • Sephora
  • Chaumet
  • Renault Group
  • Salomon
  • TAG Heuer
  • Etam
  • Shiseido
  • Yves Rocher
  • Byredo
  • Jardiland
  • Hiscox
  • Fursac
  • Cegid
  • Bricomarché
  • Gamm vert
  • agnès b.
  • A.P.C.
  • Monte-Carlo Société des Bains de Mer
  • RAJA
  • Mouratoglou Academy
  • Alptis
  • OGF

The need

What you tell us

« I'm preparing a redesign (rebranding, replatforming), but a nicer new site can convert less. I want a redesign based on evidence. »
  • « I want to redesign without losing conversion »
  • « I want to secure my replatforming »
  • « I want a data-driven redesign »
  • « I want to be accessibility compliant (RGAA) »

Our response

  • Understanding usage (audit and UX research)
  • Designing for performance (10 criteria)
  • Validate through testing before deploying

The principle

An experience that converts is proven through testing and observation

Illustration of the principle, without client data.

Before redesigning, we identify the steps where the journey drops off, then each fix is validated through testing.

  • Current journey
  • After fixing friction points
  • Friction repérée
  1. Start from real, measured and observed usage
  2. Keep what already converts
  3. Performance > Design
  4. Validate each mockup with real users

Our vision

An evidence-driven redesign cushions the launch drop

Illustration of the principle, without client data.

Conversion often drops after going live. In creation, Mei, our AI agent, and its 4 Synthetic Users test every mockup before user testing: the drop stays under control.

  • Without a data and UX method
  • Data-driven redesign
  • Création testée par Mei et ses Synthetic Users
  • Go-live
  1. Analyze and test the existing setup
  2. Mockups tested by Mei's Synthetic Users
  3. Validate prototypes with real users
  4. Measure before / after, then optimize through A/B testing

Method

Our method in 5 steps

Our stance

A redesign becomes de-risked

Proof before the switch reduces the risk of conversion drop.

  • Understand
  • Design
  • Submit
Talk to an expert
  1. Step 01 : Understand

    Immersion in your journeys through data and user research: analytics, heatmaps, interviews, mapping of personas and key moments, and identification of high-performing elements to keep.

    • Journey immersion: data and user research
    • Analytics, heatmaps, interviews
    • Mapping of personas and key moments
    • High-performing elements to keep
  2. Step 02 : Design

    Ideation with your stakeholders, desktop and mobile-first wireframes, high-fidelity mockups evaluated on 10 performance criteria, pages readable by AI engines and accessible.

    • Ideation with stakeholders
    • Desktop and mobile-first wireframes
    • High-fidelity mockups across 10 performance criteria
    • Pages readable by AI and accessible
  3. Step 03 : Design system

    Color, typography and spacing tokens, documented UI components and annotated handoff for developers: a style guide change becomes a simple token change.

    • Tokens: colors, typography, spacing
    • Documented UI components
    • Annotated dev handoff
    • Brand guideline change = token change
  4. Step 04 : Submit

    Qualitative and quantitative prototype testing, iterations based on field feedback, cross data and UX review, structured validation process.

    • Prototype testing, qualitative and quantitative
    • Iterations based on field feedback
    • Cross data and UX review
    • Paced validation workflow
  5. Step 05 : Improve

    Post-redesign measurement against the baseline, before/after review, roadmap of priority initiatives and conversion KPI tracking.

    • Post-redesign measurement against the baseline
    • Before / after assessment
    • Roadmap of priority initiatives
    • Conversion KPI tracking

Conversion Intelligence

Our experts, backed by a fleet of AI agents

On this offering, our experts rely on Mei, an agent from the Conversion Intelligence fleet: the agent prepares, the expert decides.

  • The offer agent

    Mei at work

    What the agent does, what it's trained on, what it delivers and what the expert decides.

  • Synthetic Users · powered by Mei

    Four psychological profiles review your page

    The Demanding One, the Novice, the Hurried One and the Skeptic browse a product page; Mei sorts their reactions into pain points.

  • Agents on a daily basis

    Describe the need, Claude calls the agent

    A request in plain language or a "/" command: the right agent takes over, you keep the decision.

  • Architecture and fleet

    A CRO architect manages a fleet of agents

    The same CRO process, with and without agents: each agent takes over, the waiting disappears and the learning loop speeds up.

Deployment

Agents trained like experts, updated like products.

Each agent is a versioned plugin on GitHub. Three ways to make the most of it.

During a mission

During the engagement

Our consultants call on the agents at every stage of the CRO cycle. You receive the deliverables, without installing anything.

Via the Welyft platform

Remote, at Welyft

The fleet runs on our platform, connected to your tools with your consent. An expert validates every deliverable.

Internalized within your organization

Within your organization

We build your agents using our method, customize them, then a GitHub plugin marketplace delivers their updates.

Deliverables

What you get

  • Pre-redesign audit

    Strengths, friction points, elements to preserve.

  • Wireframes & high-fidelity mockups

    Desktop and mobile-first, GEO/LLM-friendly, annotated.

  • Figma design system

    Tokens, components and developer handoff, scalable: a new brand guideline comes down to a token change.

  • Measurement plan & roadmap

    Before/after comparison, prioritized workstreams.

Who is it for?

Who is this offer for?

Tools used

  • Contentsquare
  • Hotjar
  • Figma
  • Air360
  • Claude design
  • Maze
  • Brands preparing a redesign or replatforming
  • DNVB or retail with strong pressure on conversion
  • Sponsor: Head of E-com, Digital Director, CPO

To go further

Articles by our experts related to this offer.

All our articles

To go further

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Experimentation

CRO & Experimentation Program

Turn your visits into measurable growth

  • AB Tasty
  • Kameleoon
  • Dynamic Yield
  • and 3 other tools

Data & Analytics

Sanity Check Tracking

Make your tracking reliable before deciding

  • GA4
  • GTM
  • Piano
  • and 2 other tools

Data & Analytics

Data & Dashboarding foundation

Drive decisions with reliable data

  • GA4
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  • Mixpanel
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Start by knowing where you stand.

Measure your maturity in a few minutes, or speak directly to an expert.