Website design agency
Design and redesign of new-generation websites, optimised for GEO
Oli-via-net builds websites that combine design, technical performance and commercial effectiveness. Every project builds in SEO and GEO from the design stage, an architecture designed for conversion, and optimal loading speed.
For 15 years, we have been helping French businesses build showcase websites, online shops and custom platforms that generate qualified traffic and tangible results.
The technologies behind our websites
- AstroNew-generation websites
- WordPressShowcase and content websites
- WooCommerceShops on WordPress
- ShopifyTurnkey e-commerce
- WebflowCustom-designed websites
- KadenceHigh-performance WordPress theme
- DiviPage builder
- Schema.orgStructured data for SEO and AI
Website design agency
Why choose Oli-via-net to design or redesign your website
With a clear architecture, built-in SEO and a conversion-focused design, every website we develop becomes a genuine digital performance lever.
Our teams combine design, technical skills and SEO strategy to build high-performing, lasting websites.
Every redesign or new build is built around measurable objectives, visibility, conversions, awareness.
Let’s reach your growth targets together
We work with businesses in a range of sectors, very small businesses, SMEs, large corporations, start-ups…
New-generation websites
Tomorrow’s website is run by talking to AI
We now build our websites in Astro, a technology that produces ultra-fast static pages, with no database to hack and almost no hosting costs. That is already the case for 7days.dev and for the websites in our editorial network, which score 100 in all four Lighthouse categories.
And the back office is disappearing. Tomorrow, you will no longer go through an admin interface to change a text, add a product or launch a promotion. You will ask your AI assistant, in writing or out loud, and your website will update itself. That is already how we develop our own websites.
- SpeedPages served in a few milliseconds, 100 on Lighthouse, mobile and desktop.
- SecurityNo database and no plugins to update, so almost nothing to attack.
- CostAlmost free hosting and no theme or plugin licences.
- AIPages that are crystal clear for Google and AI, and a website you develop by talking to AI.
Which CMS should you choose to build or redesign your website in 2026, 2027 and 2028?
Astro, WordPress, Shopify, Webflow… We help you choose
The choice of technology depends on your business, your objectives and your budget. We master the main technologies and advise you objectively. We always put your long-term interest ahead of a solution that suits us.
Astro, our choice for new-generation websites
Who is it for? Showcase websites, content websites, blogs, networks of websites and local pages, and more and more online shops (with Shopify behind the scenes for payment).
- Maximum speed, static pages served in a few milliseconds
- Security, no database and no vulnerable plugins
- Almost free hosting and no licences
- Clean code, ideal for SEO, GEO and AI agents
- A website run by talking to AI, with no back office
- No traditional admin interface, changes go through AI or through us
- Less suited to websites that rely on many WordPress plugins
WordPress, total flexibility
Who is it for? Showcase websites, blogs, e-commerce (WooCommerce), custom platforms, start-ups that want total control
Advantages:
- Maximum flexibility, with more than 60,000 plugins available
- Excellent native SEO (when configured properly)
- Full ownership of your data and code
- Controlled hosting costs (from €5/month)
- A huge global community (support, developers, resources)
Limits:
- Requires regular maintenance (WordPress updates, plugins, security)
- A moderate learning curve for advanced administration
- Security needs watching (a target for hackers because it is so widespread)
Our technical recommendations:
- An optimised premium theme (Kadence, GeneratePress, Astra)
- Essential plugins only (< 15 to limit conflicts)
- Optimised WordPress hosting (OVH, Kinsta, WP Engine, O2Switch)
Total budget (excluding build): €150 to €500/year (hosting + theme + premium plugins)
Shopify, turnkey e-commerce
Who is it for? Pure online shops, dropshipping, e-commerce brands that want to focus on product and marketing, not on technical matters
Advantages:
- All-in-one hosting, zero technical maintenance
- Performance and security handled by Shopify
- Powerful e-commerce apps (basket reminders, upselling, customer reviews)
- Built-in payments (Shopify Payments) with no transaction fees
- Automatic scalability (easily handles more than 10,000 orders a month)
Shopify costs and constraints:
- Fixed monthly costs, €29 to €79/month (depending on the plan)
- Transaction fees if you do not use Shopify Payments
- Limited customisation compared with WordPress (less flexible for custom work)
- Decent SEO, but less configurable than a CMS such as WordPress
- Total dependence on the Shopify ecosystem (migration is more complex if you change solution)
Our technical recommendations:
- Shopify plan at €79/month minimum (the €29 Basic plan is too limited for professional use)
- A conversion-optimised theme (free Dawn, or a premium theme at €180 to €350 depending on needs)
- Essential apps, customer reviews, basket reminders, SEO, email marketing (+€50 to +€200/month depending on volumes and features)
Total budget, €80 to €300/month, or €950 to €3,600/year depending on the plan + the apps used.
Webflow, premium design without compromise
Who is it for? Upmarket brands, creative agencies, tech start-ups, businesses that want a unique, modern design without limits
Advantages:
- Completely free design with no template constraints
- Advanced native animations and interactions (scroll, hover, transitions)
- Clean, lightweight code (better performance than the average WordPress site)
- An intuitive visual CMS for the end client
- Ultra-fast hosting included (global AWS CDN)
Limits:
- Higher costs ($23 to $212/month depending on traffic)
- Limited e-commerce (max. 3,000 SKUs, basic features vs Shopify)
- Fewer plugins/extensions than WordPress
- A designer’s learning curve (Webflow skills needed for advanced changes)
Our technical recommendations:
- CMS plan minimum ($23/month) for dynamic websites
- Avoid Webflow e-commerce for > 500 products (choose Shopify)
- Perfect for premium showcase websites, portfolios and landing pages
Total budget (excluding build): $280 to $2,500/year depending on traffic
Our advice:
- You want a unique, modern design without compromise → Webflow
- You want flexibility + control + powerful SEO → WordPress
- You are launching an online shop with no technical skills → Shopify
Headless CMS — advanced technical flexibility
Who is it for? Complex web/mobile applications, multichannel websites (web + app + IoT), projects requiring extensive API integrations, advanced technical teams
What is a headless CMS? A complete separation between the back end (content management) and the front end (display). The content is stored in a database accessible through an API, then consumed by any interface (website, mobile app, interactive kiosk, voice assistant).
Main solutions:
- Strapi (open source, self-hosted, very flexible)
- Sanity (real-time, excellent for collaborative content)
- Contentful (premium SaaS, enterprise scalability)
- Ghost (geared towards blogging/newsletters, simple and efficient)
Advantages:
- A modern decoupled architecture (independent back end + front end)
- Maximum performance (an optimised front end with no CMS constraints)
- Native multichannel, the same content delivered on web, mobile app, smartwatch, etc.
- Complete freedom on the front end (React, Vue, Next.js, Nuxt, Svelte…)
- Stronger security (no direct database access from the front end)
Limits:
- High technical complexity (experienced developers needed)
- Higher development costs (custom architecture)
- Separate front-end + back-end maintenance
- A steep learning curve for teams
- A less extensive plugin ecosystem than WordPress
Total budget (excluding build): €500 to €3,000/year depending on the solution (self-hosted Strapi = cheaper, Contentful Enterprise = very expensive)
Our advice: Reserved for projects with a real need for multichannel delivery, or a technical team able to maintain the architecture. Otherwise, WordPress/Shopify/Webflow are more than enough.
Framer / Siter / Typedream — the new design-first + AI wave
Who is it for? Tech start-ups, creative agencies, solo entrepreneurs, projects that need fast iteration and premium design without a developer
What is it? A new generation of ultra-modern no-code/low-code tools that combine intuitive visual design + generative AI + technical performance to create professional websites in a few hours (compared with several weeks traditionally).
Main solutions:
Framer (the current leader)
- Ultra-modern design with smooth native animations
- Built-in AI for content generation and translation
- A simple but effective CMS
- Excellent performance (loading time < 1.5 s)
- Ideal for landing pages, premium showcase websites, portfolios, SaaS marketing
Siter (the French challenger)
- 100% no-code, an intuitive Figma-style interface
- Modern templates and automatic responsiveness
- Decent native SEO (tags, sitemap, basic structured data)
- Very competitive prices (free for up to 3 projects)
- Ideal for very small businesses and SMEs, tight-budget projects, fast MVPs
Typedream (specialising in content creators)
- Ultra-simple (a Notion-like interface)
- Conversion-optimised landing pages and sales pages
- Native marketing integrations (email, payment, analytics)
- Ideal for content creators, info-preneurs, product landing pages
Advantages:
- Extremely fast creation (a complete website in 2-5 days vs 4-8 weeks)
- Modern design and native animations (Webflow level without the complexity)
- Built-in AI for content, translation and SEO optimisation
- Affordable prices (€15 to €50/month depending on the platform)
- Frequent updates and new features
- Ultra-fast hosting included (global CDN)
Limits:
- A young ecosystem (fewer plugins/integrations than WordPress)
- Limited e-commerce (not for shops > 50 products)
- Total dependence on the platform (migration is difficult)
- Good SEO, but less configurable than a traditional CMS
- Community and resources still limited compared with WordPress
- Less suited to complex projects (advanced members’ area, marketplace)
Total budget (excluding build): €180 to €600/year depending on the platform and traffic
Our recommendation:
- Framer if you want the best possible design + modern animations (budget €25-50/month)
- Siter if your budget is tight and you need a professional showcase website quickly (free → €20/month)
- Typedream for a product/service landing page or the creator economy (€15/month)
When to avoid these solutions:
- Online shop > 50 products → Shopify is a must
- Complex website with custom features → WordPress/headless
- Need for total control over advanced SEO → WordPress
- A project that must last 10+ years without platform dependence → self-hosted WordPress
The choice depends on 4 decisive factors. Here is our final advice:
- Your budget (initial + recurring annual)
- Your need for future flexibility (changes planned within 2-3 years)
- Your in-house technical skills (maintenance autonomy)
- Your launch deadline (urgent or planned)
Website and e-commerce website redesign agency
Why redesign or build a new website in 2026?
Is your website 3, 5 or 10 years old?
Your website is your first salesperson. It works 24/7, answers questions, reassures your prospects and generates sales. But only if it is well designed.
It may have worked well at launch, but today your performance is stagnating. Here are the signs that it is time to move to a more modern, higher-performing version.
Your website is slow
After a few seconds of waiting, a large share of mobile visitors leave before they have seen your offer. And Google measures that slowness.
It looks dated
Design is the first impression. An ageing website makes people doubt how serious you are before they have even read anything.
It is invisible on Google
A badly structured website stays hard to find, and every visit then has to be paid for in advertising.
It generates few enquiries
Visitors, but few contacts? The journey does not lead people to take action.
It is hard to change
Going through a developer to change a photo costs time and money. A new-generation website can be edited by talking to AI.
AI does not recommend it
Google AI Mode, Gemini and ChatGPT cite fast, clear, well-structured websites. A confusing website gets left out.
Website design or redesign project audit
Describe your project in a few lines to get an initial assessment of its feasibility, its stakes and its growth potential.
This audit lets you make the right decisions for your project from the outset, before launching a redesign or a new build, by identifying the structuring choices (technical, SEO, conversion).
The aim is to secure decisions upstream, avoid common mistakes and lay a consistent foundation for the rest of the project.
An analysis based on the information you provide and on current web standards (SEO, UX, performance, conversion). 100% free, no commitment
Or book directly
A free 30-minute call
Available Monday to Saturday, 8 am to 8 pm (Paris time). Choose a slot and it is booked for you straight away.
None of the slots suits you? Fill in the free audit form, use the Contact page or call the agency on +33 6 89 96 40 79.
Website design agency in the Yvelines
Our approach. Building websites that outperform your competitors’
A badly designed website is expensive, lost traffic, missed conversions, total dependence on paid advertising. Conversely, a well-designed website becomes an asset that generates qualified traffic, converts your visitors and lowers your acquisition costs.
We do not build “pretty websites”, we build conversion machines, optimised for Google and generative AI. At Oli-via-net, every website is designed around 3 fundamental pillars, technical performance, commercial effectiveness and scalability.
Pillar 1: Technical performance
Loading time < 2 seconds
- Advanced optimisation, compressed WebP images
- Lazy loading, minified code
- CDN, smart caching
- Premium hosting if needed
Technical SEO built in from day one
- A structure designed for Google, semantic HTML5 markup
- Schema.org structured data, XML sitemap, optimised robots.txt
- Core Web Vitals in the green
Natively mobile-first Designed first for mobile (60% of your traffic), then adapted for desktop — not the other way round.
Security & compliance
- HTTPS as standard
- Automatic daily backups
- Intrusion protection
- Native GDPR compliance (cookie banner, privacy policy)
Pillar 2: Commercial effectiveness
Conversion-focused UX Every page guides visitors towards a clear action, with an intuitive journey, minimal friction and simplified conversion steps.
Strategic calls to action Visible buttons, short forms (5 fields max.), persuasive messages, reassuring micro-interactions.
Persuasive, benefit-focused content Texts written to convince, not just to inform. Customer-focused copywriting, “What you gain” > “What we do”.
Strategic social proof Genuine customer testimonials, recognised partner logos, credible key figures, visible certifications.
Pillar 3: Scalability & autonomy
An intuitive CMS and complete training. You edit texts, images, pages and products with no technical skills. Personalised training of 2 to 6 hours depending on the package.
A modular, scalable architecture. New features are easy to add, blog, shop, members’ area, online booking, multilingual
Guaranteed maintenance and responsive support. Regular updates (WordPress, plugins, security), automatic backups, responsive technical support
Complete documentation. A personalised user guide, video tutorials, a technical FAQ — you are 100% autonomous
- 100/100Lighthouse, 7days.devIn all four categories, mobile and desktop, after its rebuild in Astro.
- 63 msResponse time, 7days.devCompared with a page returning an error before the September 2026 rebuild.
- 100/100Performance, ECP RénovationHome page on desktop, compared with 89 before our work in October 2026.
A website design agency specialising in SEO and GEO
Your SEO is built in from the design stage
Too many websites go live without an SEO and GEO strategy.
The result is zero organic traffic, total dependence on paid advertising and a wasted investment. SEO is not an option you add afterwards, it is the very foundation of the architecture.
Our approach: SEO is built in from the design stage.
SEO architecture — the invisible foundation
A structure in thematic silos Content organised logically by theme to strengthen semantic authority
An optimised site structure A maximum of 3 clicks to reach any page from the home page (the 3-click rule)
Strategic internal linking Internal links designed to pass “SEO juice” to the priority pages
Clean, descriptive URLs example.com/services/search-engine-optimisation (≠ example.com/page?id=1234)
Breadcrumb trail Secondary navigation that helps Google and users understand the structure
Technical SEO — invisible but critical foundations
Optimised meta tags. Unique title tags (50-60 characters), persuasive meta descriptions (150-160 characters), a clear heading hierarchy
Schema.org structured data. JSON-LD markup for Google rich results, FAQ, products, reviews, events, breadcrumb, organisation.
Automatic XML sitemap. Automatic generation and submission to Google Search Console.
Optimised robots.txt file. Precise control of Google’s crawl (pages to index/exclude).
Canonical tags. Avoids internal duplicate content.
Clean 301 redirects. If redesigning, all the old URLs redirect to the new ones (zero traffic loss).
Core Web Vitals performance — modern technical SEO
LCP (Largest Contentful Paint) < 2.5 s The loading time of the largest visible element — a direct impact on Google rankings.
INP (Interaction to Next Paint) < 200 ms How quickly the website responds to user interactions.
CLS (Cumulative Layout Shift) < 0.1 Visual stability (no content shifting during loading).
Technical optimisations deployed:
- Compressed WebP images + lazy loading
- Minified and deferred CSS/JS code
- Browser and server caching configured
- CDN (Content Delivery Network) for global delivery
- Optimised premium hosting (SSD server, PHP 8+, HTTP/2)
Our goal, 100 on PageSpeed Insights, mobile and desktop
Optimised content — editorial SEO
Strategic keyword research. Identifying high-potential queries (volume + intent + difficulty).
Content that matches search intent. Every page precisely answers the search intent (informational, navigational, transactional).
Semantic optimisation. A richer vocabulary, natural co-occurrences, synonyms, frequently asked questions.
Catchy headings and H tags. A unique, descriptive H1, with H2-H6 structuring the content logically.
Persuasive meta descriptions. A hook that makes people want to click in Google’s results.
Our website design and redesign packages
How much does it cost to build a website?
Whether you are a tradesperson, an online retailer, a franchisor or a large group, we have a suitable package. The standards are the same for everyone.
Showcase website
from €600 excl. VAT
Tradespeople, very small businesses, freelancers and independent professionals who want a clear, fast website that ranks well.
- The essential pages for your business
- Responsive design on mobile and desktop
- SEO and GEO built in from the design stage
- Contact form and enquiry tracking
- Launch and handover
E-commerce website
from €900 excl. VAT
Retailers and brands that want to sell online, with a fast shop that is easy to manage.
- Product catalogue, secure payment, delivery
- Product pages optimised for Google Shopping
- SEO and GEO built in, product structured data
- Sales and conversion tracking
- Shop handover
Franchise network
on quotation
Franchisors who want a strong national brand and real local visibility for every outlet.
- A national website and a local page for each franchisee
- Brand consistency across the whole network
- Harmonised Google profiles for the outlets
- Local content without duplication
- Simple tools for franchisees
Large corporation
on quotation
Groups and large companies whose website carries brand, security, performance and governance stakes.
- Multi-site and multilingual architecture
- Integration with your information system
- Accessibility, security and compliance
- Performance at scale
- Support for your teams
Starting prices excluding VAT. The precise quote depends on the number of pages, the content to produce and the features. Every website builds in SEO, GEO and optimal performance.
Our work
Client cases and redesigns, before and after
Real redesigns, with what they changed. The figures come from our Lighthouse, PageSpeed and Search Console checks.
Client case · e-commerce
Arsayo, UX redesign and complete optimisation
From a standard Shopify shop to an experience designed for conversion. A redesign of the experience and of the product pages, reliable conversion tracking, structured data and content, from March to May 2024.

- 0.9 → 3.1%Conversion rate4 months after the redesign
- +192%Revenue€29,800 a month
- 4.2 → 1.9 sLoading timeFaster pages on mobile
- 380 → 1,340Google visits per month17 keywords in the top 10
1 / 10
Scroll through the redesigns
- ECP RénovationInterior renovation, Yvelines
Before 
After 
- Performance 89 → 100
- Accessibility 71 → 100
- Les Bains et Cuisines d’AlexandreBathrooms and kitchens, Paris
Before 
After 
- Cited first by ChatGPT
- Ratié CouvertureCarpentry and roofing, Yvelines
Before 
After 
- Recommended by Google AI Mode
- Tree Art ÉlagageTree surgery, Yvelines
Before 
After 
- 1st on Google for “entreprise élagage yvelines” (tree surgery company Yvelines)
- CI Rénovation 78All-trades renovation, Yvelines
Before 
After 
- 1st on Google for “entreprise rénovation 78” (renovation company 78)
- Passi JardinLandscape gardener, Yvelines
Before 
After 
- EcoffiERP for the printing industry
Before 
After 
- Chaudières à granulésWood heating
Before 
After 
- 100 on Lighthouse
- Massiva BTPStructural work and construction
Before 
After 
- 100 on Lighthouse
- 7DaysProcess automation
Before 
After 
- 100 on Lighthouse
- 63 ms response time
We have redesigned a dozen websites in recent months, for our clients and for our own projects. The “before” visuals are illustrative mock-ups, the “after” visuals are screenshots of the live websites.
100% satisfied clients
What our clients say about us, and what Google and AI systems take away from it.
★★★★★
“Having spoken with a number of Google Maps specialists who had not convinced me, I was lucky enough to come across Nicolas. His direct, measured, rational and concise approach won me over. The free audit made me aware of where I stood in the Google universe. My only regret is not having met him sooner.”
★★★★★
“I contacted Nicolas for help with an online reputation case involving a Google review. He took the time to study my case in detail and to look for different solutions suited to my situation. I recommend him without hesitation.”
★★★★★
“We called on Nicolas to restore our Google Business Profile. As soon as we had called him, he looked into our case. We recommend Nicolas very warmly, and of course we will keep working with him.”
★★★★★
“Sound advice, very competent and always available! I also really appreciated his expertise in SEO and automation, which helped me gain visibility and efficiency.”
★★★★★
“I am delighted that I entrusted the redesign of my website to Oli-via-net. It is a very professional agency that adapted to my business and to the size of my company. I recommend them.”
★★★★★
“I called on Nicolas to build a website for my company from A to Z, and I am very pleased with the result. Nicolas listens and very quickly understood what I expected. I highly recommend him.”
Read the client reviews published on our Google Business Profile.
Frequently asked questions about website design & redesign
Building or redesigning a website is a strategic investment. Between the choice of technology, timescales, costs and expected results, it is normal to have questions before getting started. This FAQ answers the most frequently asked questions about building and redesigning websites — WordPress, Shopify, Webflow — to help you make the right decisions, avoid costly mistakes and maximise the return on investment of your project.
Prices and budget
How much does it cost to build a website?
At Oli-via-net, a showcase website starts at €600 excl. VAT and an e-commerce website at €900 excl. VAT. Websites for franchise networks and large corporations are quoted on request. The final price depends on the number of pages, the content to produce and the features.
Why do prices vary so much from one agency to another?
They depend on the time spent, the degree of customisation, the content to write and the technology. Our prices come from a highly tooled method, with proven templates and AI for repetitive tasks. The standards, however, stay the same, SEO, GEO and performance included.
What costs should you plan for after launch?
The domain name, hosting, any subscriptions (Shopify, for example) and maintenance. An Astro website costs very little to host and has no theme or plugin to renew.
Technology
What is an Astro website?
Astro is a technology that generates static pages, ready to be served. The website is very fast, very secure because it has no database, and almost free to host. It is our choice for new-generation websites.
Astro, WordPress, Shopify or Webflow, which should you choose?
Astro for a fast, secure website run with AI. WordPress if you want a traditional back office and plenty of plugins. Shopify for turnkey e-commerce. Webflow for complete design freedom. We advise you according to your business and your budget, not according to our habits.
Will I be able to edit my website myself?
Yes. On WordPress, from the back office. On an Astro website, by asking an AI assistant for the changes, in writing or out loud, or by leaving them to us.
Will it soon be possible to manage your website by talking to AI?
It is already largely possible. We develop our own websites by talking to AI, and this way of working will gradually replace admin interfaces, including for running an online shop.
Timescales and method
How long does it take to build a website?
A few weeks for a showcase website, longer for an e-commerce website or a network of websites. The timescale depends mainly on how quickly the content and approvals are available.
Does a redesign make you lose your rankings?
No, if it is well managed. We keep the good URLs, redirect the old ones to the new ones, keep the important links and monitor traffic in Search Console after launch.
How does a website creation project work?
In four steps, audit and strategy, development and technical optimisation, content and SEO, then testing, handover and launch. You approve each key step.
SEO and AI
What is a GEO-optimised website?
It is a website that AI, Google AI Mode, Gemini or ChatGPT, can easily understand and cite. Fast pages, clear content that answers real questions, structured data and consistent information across your whole online presence.
Will my website rank well on Google?
SEO is built in from the design stage, architecture, technical work, content and structured data. No one can guarantee a position on Google, but a well-built website starts with a head start.
Why is website speed so important?
A slow website drives visitors away, converts less and weighs on your rankings. Our goal is 100 on PageSpeed Insights, on mobile and on desktop.
Franchises and large corporations
Do you build websites for franchise networks?
Yes. We design a national website with a useful local page for each outlet, a consistent brand across the whole network and harmonised Google profiles, so that each franchisee is visible in their town.
Do you work with large corporations?
Yes. For groups and large companies, we take into account multi-site architecture, multilingual requirements, integration with the information system, accessibility, security and governance. The project is scoped and quoted separately.
Request your free quote to build or redesign your website:
Do you have a project in mind, a website to improve, or simply questions about the best strategy to adopt?
We help businesses across France – from Paris to Perpignan – grow their visibility, attract more prospects and win more customers through their website.
Our aim is to turn your website into a genuine growth lever, measurable and profitable.
Fill in the form opposite and we will get back to you within 24 hours.


























