Website design / redesign
A website built to be found, understood and used: structure, content and performance worked on together, not added as an afterthought.
Website design, ecommerce and digital acquisition
A website your future customers in Lille can find, understand from the first visit, and that turns visits into inquiries. Design, content, development and SEO, depending on what your project needs.

They trust us
The mumnet.fr website quickly climbed on the search terms set in the objectives, and our inbound leads doubled in just 3 months.
Emilie Bertrand, Marketing Manager, M&M Militzer & Münch · Transport and logistics
Your need
Diagnostic
A website can get visits without generating inquiries, or offer a relevant service yet remain hard to find or to use. We review the stages that drive its effectiveness:
Do your pages answer what your future customers search for?
Are your offer and trust signals easy to find?
Does the site load fast and work well on mobile?
Do the form or the checkout create friction?
Do you know which pages generate useful inquiries?
This analysis helps choose which improvements to make, before investing in new content or multiplying pages.
Our difference
Visibility in Lille: Google, Maps and AI
On “web agency Lille” as on the queries for your business, the page must answer the question, not just contain the keyword. In July 2025, across 1.9 million citations, Ahrefs found that 76.1% of pages cited in AI Overviews were already in the top 10: SEO remains the foundation.
Google Business Profile, a consistent name, address and phone number everywhere they appear, real reviews. This is where the city name really matters, and what someone looking for a provider nearby will check.
AI Overviews and AI Mode have been available in France since July 22, 2026, and Arcom measured in March 2026 that 57.1% of French people aged 15 and over use an AI service. A share of “which agency for…” questions now ends without a click: you need to be the cited source.
How we go about it
Pages served as complete HTML, a Markdown version of every page, an llms.txt file: nothing that matters is hidden behind JavaScript.
A single data graph: business, address, opening hours, service catalog, frequently asked questions, all linked to the same AVANGARDISM entity.
Real prompts tested on ChatGPT, Perplexity and AI Mode, recorded with their date. What is cited, what is not, and what we change.
The Lille market
Lille is a hub for retail and distribution, with major mail-order headquarters, an industrial and logistics base, and a crossroads position between Paris, Brussels and London. Many companies there sell well beyond the city: their website must be found in Lille and convince everywhere.
We match the site to that reach: service areas across the metropolitan area for a services company, catalog and delivery for a retailer, industry content for a B2B offer, multilingual journeys for a cross-border business.
Your point of contact stays the same from the first conversation to launch, and is easy to reach: progress meetings by video call, deliverables and follow-up online, and we come to Lille when the project calls for it (1 hour by high-speed train from Paris). The companies we support outside Île-de-France are not followed any differently from the others.

A case study

Alexandre
Co-founder & Technical Director
Contact on LinkedIn
Milan
Co-founder & Project Manager
Contact on LinkedIn
Gautier
Full Stack Developer

Saleh
UX/UI Designer

Louane
UX/UI Designer

Van Dan
Full Stack Developer

Thomas
AI Project Lead

Anaïs
Senior UX/UI

Laura
SEO / GEO Editorial Lead

Vincent
SEO Manager
Method
We discuss your business, your objectives, your current website and your constraints. You can come with a set of specifications or a need still to be defined.
We propose a scope of work, deliverables, a timeline and a budget, with the technical choices explained according to how you will use them.
Content, mockups and features are developed within the agreed scope, with approval checkpoints throughout the project.
We check that the site works and prepare your team to take it over. Maintenance and new features can follow as ongoing support.
Any questions?
Our team works together in our Paris offices (17th arrondissement), and that is where we support our clients in Lille and across the metropolitan area. In practice: a first meeting by video call, regular progress meetings, deliverables and follow-up online, and we travel on site when the project calls for it.
Next step
Tell us about your business in Lille, your current website and what you want to improve. A first conversation by video call will help clarify your needs.
Discuss my project