About · Les Sables-d'Olonne, France

Agence Zen, the web studio of Valentin Halgand

Agence Zen is a premium web studio founded in 2023 by Valentin Halgand in Les Sables-d'Olonne, Vendée, France. We design custom websites, 100% hand-coded (full code) in Next.js or WordPress, and grow their visibility on Google (SEO, Google Ads) and in AI answers (GEO), for SMBs, professional firms and demanding brands in France, Switzerland and Canada, 100% remote by video call. Websites from €3,200.

Valentin Halgand, founder of Agence Zen
Valentin HalgandFounder and project director
Founded in
2023
Based in
Les Sables-d'Olonne, France
Collaboration
100% by video call
Portfolio
248 websites delivered

Independent studio

Why an independent studio?

Agence Zen is an independent studio, run by its founder. When you entrust us with your project, your point of contact is Valentin Halgand, from the first call to launch. There is no salesperson between you and the person steering your website: every question gets a direct answer, every decision is made with him.

The whole project runs remotely, by video call: strategy workshops, mock-up presentations, approvals and training. The process, the deliverables and the point of contact are the same wherever you are: in Vendée, elsewhere in France, in Switzerland or in Canada.

We work for SMBs, professional firms (lawyers, consultancies, healthcare, real estate) and demanding brands that expect their website to be found, on Google and in AI answers alike, and to turn visitors into clients.

One senior point of contact

Valentin Halgand, founder, steers every project: scoping, mock-ups, approvals and launch. You always know who to talk to.

100% remote, by video call

No travel needed: workshops, progress reviews and training take place by video call, and are recorded when the package includes it.

No middleman

No salesperson and no go-between project manager: you deal directly with the founder, from the first call to launch.

Expertise

What Agence Zen does.

Three complementary services, public pricing and a fixed price agreed in the quote, with no overruns.

Custom website design and development

From€3,200

Live in 3 to 12 weeks depending on the package

Strategy, copywriting, design and full-code development in Next.js or WordPress (theme built from scratch for your site), with SEO and GEO built in from the start.

Website creation

SEO and GEO

From€790/month

Initial 6-month commitment

Visibility on Google, Google Maps and in AI answers (ChatGPT, Perplexity, Gemini, Google AI Overviews), measured every month.

SEO and GEO

Google Ads campaigns

From€790/month

Excluding media budget, €1,500/month minimum recommended, paid directly to Google

Account setup, reliable conversion tracking and continuous optimisation of your Search and Performance Max campaigns.

Google Ads packages

Net prices — VAT not applicable (French micro-enterprise, art. 293 B CGI).

Method

How we work: 5 steps, from brief to launch.

Valentin Halgand steers every step, entirely by video call. You approve each deliverable before moving on to the next.

  1. Strategy workshop by video call

    Scoping questionnaire, then a video workshop with the founder: goals, audiences, competition and key messages.

  2. Structure and content

    Site structure, keyword research and copywriting: every page has a clear role, for your visitors as well as for Google and AI.

  3. Custom design

    Desktop and mobile mock-ups designed for your brand, presented by video call, with two rounds of revisions included.

  4. Development and performance

    100% hand-coded development (full code), in Next.js or in WordPress with a theme built from scratch for your site, technical SEO and GEO, structured data, plus full testing and acceptance on mobile and desktop.

  5. Launch and growth

    Go-live, recorded training by video call, then measurement of your visibility on Google and in AI answers.

Our tools

Next.js

Server-rendered pages, fast and readable by Google and AI crawlers alike: for maximum performance and security, custom features or a headless CMS.

WordPress, hand-coded theme

A theme built from scratch for your website, fully hand-coded (full code). You keep the WordPress admin interface and its plugins (WooCommerce, forms, multilingual).

High-performance hosting

Hosting matched to the technology (Vercel edge for Next.js, managed WordPress hosting), with SSL certificate, backups and monitoring.

Core Web Vitals

Optimised LCP, INP and CLS, and a Lighthouse score ≥ 90 on mobile guaranteed in writing at launch, in Next.js and WordPress alike.

Technical SEO and GEO

Schema.org structured data, sitemap, hreflang, llms.txt file and FAQs written to be cited by AI assistants.

Measurement on your accounts

Google Analytics 4 and Search Console set up on your own accounts, plus tracking of your citations in AI answers.

Commitments

What we commit to.

Guaranteed performance

Lighthouse score ≥ 90 on mobile at launch, guaranteed in writing, with the report. Otherwise, we fix it at no extra cost.

Full ownership

You own the code, the design, the content and your accounts (Analytics, Search Console, Google Ads).

Fixed price

Scope and price are agreed in the quote. No overruns, no hidden fees.

One point of contact

Valentin Halgand, founder, steers your project by video call, from the first workshop to launch.

What we do not promise

Nobody controls Google's rankings or AI answers. We therefore guarantee no ranking and no citation. We commit to what depends on us (technical quality, content, method) and we measure the results with you, with reports to back them up.

Key figures

Agence Zen in figures.

Figures computed from our portfolio and our packages.

Agence Zen brand founded
2023
websites delivered, shown in our portfolio
248
industries represented
14
countries served: France, Switzerland, Canada (including 14 .ch and 9 .ca websites)
3
weeks to go live, depending on the package
3 to 12
Lighthouse score on mobile, guaranteed at launch
≥ 90
method steps, from brief to launch
5
remote, by video call
100%

Industries represented in the portfolio

  • Construction48 websites
  • Cleaning & Services22 websites
  • Technology & SaaS19 websites
  • Events18 websites
  • Sports & Coaching16 websites
  • Marketing & Communication16 websites
  • Finance & Consulting15 websites
  • Health & Wellness11 websites
  • Automotive11 websites
  • Real Estate10 websites
  • Restaurants & Catering9 websites
  • Fashion & Beauty9 websites
  • Lawyers & Legal7 websites
  • Training & Education6 websites

Browse the portfolio

Legal identity

A clearly identified business.

The official details of the business behind the Agence Zen brand.

Trading name
Agence Zen
Operated by
Valentin Halgand, sole proprietor (French "entrepreneur individuel", EI)
Status
French micro-enterprise
SIREN
799 325 949
VAT
VAT not applicable, art. 293 B of the French Tax Code (CGI)
Registered office
Les Sables-d'Olonne (85100), Vendée, France
Area served
France, Switzerland and Canada. 100% remote, by video call

Agence Zen is a French micro-enterprise under the VAT franchise scheme (article 293 B of the French Tax Code): the price in your quote is the price you pay, with no VAT added.

Let's talk about your project.

A discovery call by video with Valentin Halgand, then a detailed fixed-price proposal, free and with no commitment.

Book a discovery call