Websites that genuinely perform
We build custom showcase sites, e-commerce stores and web applications with Next.js 16. 100/100 performance score, premium design, delivered in 3-4 weeks.
The web should be fast, beautiful and profitable
Too many websites look great in demos but are slow in production, fine on desktop but disastrous on mobile. At Solentia, we refuse that compromise. Every site we deliver scores 100/100 on Core Web Vitals — not by luck, but by method.
Our tech stack (Next.js 16, React 19, Tailwind v4, Vercel Edge) isn't a trend: it's the most solid answer to today's web requirements. Performance, accessibility, SEO and user experience are non-negotiable.
- Jamstack architecture for optimal performance
- Mobile-first design and WCAG 2.2 AA accessibility
- Headless CMS integration for autonomous editing
- Continuous deployment on Vercel with instant rollback
6 areas of expertise for your digital presence
From institutional showcase to complex e-commerce, we cover all your web needs with a performance and conversion-driven approach.
4 phases for a website with no surprises
Scoping & Architecture
We analyse your business goals, target audience and competition. Together we define the information architecture, user journeys and success KPIs before writing a single line of code.
- Specifications
- Wireframes
- IA architecture
- Defined KPIs
Design & Prototyping
Creation of the complete design system: typography, palette, components and animations. Every screen is prototyped and validated with you in Figma before moving to development, guaranteeing zero surprises at delivery.
- Design system
- Figma mockups
- Interactive prototype
- Client sign-off
Development & Integration
Development with Next.js 16 and React 19 following best practices. CMS integration, performance optimisation, cross-browser testing and WCAG accessibility verified at every component.
- Next.js code
- CMS integration
- Unit tests
- 100/100 score
Testing, UAT & Launch
Full user acceptance testing with performance, security and compatibility checks. Progressive deployment on Vercel with real-time monitoring. Team training on CMS usage and technical documentation delivered.
- Full UAT
- Vercel deployment
- CMS training
- Documentation
Everything you need to know about web development
Tout ce que vous voulez savoir sur la création de site web et le développement front-end pour votre business.
The budget varies by complexity: a showcase site starts around €4,000, an e-commerce from €8,000 and a custom web application from €15,000. Every project receives a free detailed quote after a 30-minute brief.
Our standard process is 3.5 weeks for a showcase site and 5-6 weeks for an e-commerce. The timeline mainly depends on the speed of client approvals. We can accelerate on some urgent projects — contact us to discuss.
Next.js 16 delivers unmatched performance (load time < 1s, 100/100 Core Web Vitals score) that is impossible to achieve with WordPress without complex configuration. Your site is faster, more secure, cheaper to host and better ranked on Google.
Absolutely. Redesign is one of our flagship services. We first carry out a complete technical and SEO audit of your current site, then plan the migration while preserving 100% of your domain authority and Google rankings.
Yes — that's a prerequisite for us. We systematically integrate a headless CMS (Sanity or Contentful depending on your needs) that allows any member of your team to edit texts, images and pages without touching the code, via an intuitive interface.
SEO foundations are included in every project: semantic HTML markup, metadata, Schema.org, XML sitemap, robots.txt, image optimisation and a 100/100 Core Web Vitals score. For a complete SEO strategy (content, link building, GEO), we offer dedicated support through our SEO & GEO Agency offering.
Your website delivered in 3-4 weeks
Share your project in 2 minutes. We'll respond with a proposal and quote within 48 hours — no commitment required.
A high-performing website is just the beginning
Chaque expertise Solentia renforce les autres — une stratégie intégrée qui multiplie les résultats.