Founder and director

Bilel Bettaieb

A full-stack developer and digital marketing specialist, I founded ConvertiLab on one simple belief: every business deserves a website that brings in customers, not a shop window gathering dust.

After more than five years in web development and digital marketing, I set up ConvertiLab to give small businesses and entrepreneurs in the Île-de-France region the whole package: from building the website through to winning customers with SEO and online advertising, and now CRM, automatic follow-ups and AI. I work on my own, with no team: you always speak to the same person.

Rueil-Malmaison (92)
5+ years' experience
Google and Meta certified
The founder of ConvertiLab

Bilel Bettaieb

Founder of ConvertiLab

150+
Clients helped
4.5/5
14 Trustpilot reviews
2 weeks
To deliver a website
1
Point of contact: the founder

Certifications and skills

Google Analytics Certified
Google Ads Search Certified
Meta Blueprint Certified
Next.js & React Expert
Advanced Technical SEO
Digital Marketing Strategy

Areas of expertise

Technical and marketing skills side by side, for results you can see

Web design and build

Brochure sites, online shops, landing pages and bespoke web applications built with Next.js and React.

SEO and search visibility

On-page, technical and local SEO strategies to lead your sector on Google.

Google Ads and Meta Ads

Ad campaigns run on return, optimised week after week, with reporting you can actually read.

CRM, automatic follow-ups and AI

Your CRM set up, follow-ups sent automatically, and Claude (Anthropic) put to work on the repetitive jobs: quotes, Google reviews, copywriting.

Background

2019

First steps in web development

Self-taught in HTML, CSS and JavaScript. First sites for friends, family and small businesses.

2020

Specialising in digital marketing

Going deeper into SEO, Google Ads and acquisition strategy. First campaigns that performed for clients.

2022

Full-stack and growth expertise

React, Next.js and Node.js mastered. A rare mix of technical and marketing skills.

2024

ConvertiLab founded

The agency launched with one clear purpose: helping small businesses and entrepreneurs grow through digital.

2025-26

150+ clients helped

Tradespeople, shops, sole traders and small teams, across the Île-de-France region and the whole of France, rated 4.5/5 on Trustpilot.

About

Who is ConvertiLab, your web agency?

A web and digital marketing agency based in Rueil-Malmaison, in the Île-de-France region near Paris, focused on winning customers and converting them. The founder, your single point of contact, works on your site, your advertising, your SEO and your AI automation, so that being online actually brings you business.

Our approach

A data-driven approach

Every decision follows the numbers: analytics, A/B testing and detailed tracking, so results can be measured

A strategy built for you

No off-the-shelf answers. We build a marketing strategy around your market and your goals.

Support across the board

SEO, advertising, social media, email, branding: one point of contact for your whole digital strategy.

What sets us apart

Marketing expertise paired with technical work that holds up

A measurable return on every action
One point of contact, the founder, across all four areas
Fast, agile delivery
A close working relationship

Let's work together

I get personally involved in every project. Let's talk through your goals and find the right strategy for your business.