0%
Traffic loss
after redesign, when pre-redesign SEO audit is done
Website redesign
The redesign that preserves what works.
Full SEO audit before any change. Systematic 301 redirects. Organic traffic protected. We don't start from scratch, we optimise what exists.
5,0 sur Google+50 refontes livréesDevis sous 24h
Résultats mesurés sur nos projets
Zéro trafic perdu. Lighthouse 98+. Livré en 10 semaines.
Chiffres mesurés sur Search Console, Lighthouse et GA4 post-lancement.
0+
Post-redesign Lighthouse
Performance, SEO, Accessibility, Best Practices
Lighthouse98/100
0
301 redirects mapped
on average per full redesign project
0 sem.
Average timeline
from audit to production launch
Our approach
Redesigns are where most agencies lose your traffic.
Changing design, tech or CMS without mapping existing URLs is a guaranteed way to see organic traffic collapse. Google doesn't forgive mass 404s and misconfigured redirects.
Our method always starts with a full SEO audit of the existing site: URL crawl, backlink analysis, domain authority mapping. Only then do we redesign and develop. Migration is the most critical phase - we handle it with surgical precision.
Refonte SEO-safe
0% perte de trafic
Our redesign services
From audit to launch, leaving nothing to chance.
Pre-redesign SEO audit
Full crawl, backlink analysis, high-traffic URL mapping. Identification of pages that must be protected before any change.
Migration plan & 301 redirects
URL-by-URL mapping. Systematic 301 redirects tested in staging. Zero 404 errors at launch. Domain authority preserved.
Custom Figma redesign
New design system tailored to your brand. Figma mockups validated before development. Consistent identity across all devices.
Next.js 15 development
Modern, ultra-performant stack. App Router, TypeScript, Tailwind CSS. Editable Sanity CMS. Zero-downtime DNS migration.
Lighthouse 98+ and Core Web Vitals
Native performance: optimised images, lazy loading, code splitting, Vercel Edge. All Google technical signals in the green.
Post-launch monitoring & SEO
Search Console monitoring for 30 days post-launch. Crawl anomaly fixes. XML sitemap submission. Performance report at D+30.
Ce qu'on livre
Un plan de migration URL par URL, testé avant le lancement.
Chaque URL existante est auditée, mappée vers sa nouvelle destination et testée en staging. Le jour du lancement, zéro erreur 404, zéro perte de trafic.
- Mapping complet de toutes les URLs existantes
- Redirections 301 testées en staging
- Zéro erreur 404 au lancement
- Monitoring Search Console 30 jours post-lancement
solentia.agency/dashboard/migration
Plan de Migration SEO
Redirections 301 & URL mapping
URLs crawlées
847
Redirections
212
Autorité DR
48
Erreurs 404
0
URL mapping complet
Ancienne → Nouvelle · Status
- /services/web-design/site-vitrine-sur-mesure301
- /nos-realisations/realisations301
- /blog/seo-tendances-2024/blog/seo-tendances-2025301
- /contact-us/contact301
- /agence-digitale/agence-web-bruxelles301
Migration complète
0 erreur 404 · Trafic préservé
100%
AuditDesignDevMigration
Methodology
4 phases for a risk-free redesign.
01
Phase 01
Weeks 1-2
SEO audit & URL mapping
Full crawl of the existing site. Backlink and domain authority analysis. Mapping of URLs to preserve. Identification of improvement opportunities.
- Full crawl report
- URL mapping
- Backlink analysis
- SEO opportunities
02
Phase 02
Weeks 3-4
Design & migration plan
Figma mockups of the new design. URL-by-URL migration plan. 301 redirects documented. Deliverables validated before development.
- Validated Figma mockups
- URL migration plan
- Design system
- Technical specs
03
Phase 03
Weeks 5-9
Development & testing
Next.js development in parallel with live site. Staging tests. All redirects verified. Lighthouse audit. CMS training.
- Site developed in staging
- 301 redirects tested
- Lighthouse 98+
- CMS training (2h)
04
Phase 04
Weeks 10-12
Migration & monitoring
Zero-downtime DNS switch. Search Console submission. 30-day organic traffic monitoring. Crawl anomaly fixes detected post-launch.
- Zero-downtime launch
- XML sitemap submission
- 30-day monitoring
- D+30 performance report
Website redesign FAQ
The questions we get most about redesigns.
Équipe Refonte
3 experts disponibles
Mon site perd du trafic depuis la dernière refonte. Vous pouvez auditer ?
0%
Perte de trafic
212
Redirections 301
Not if it's properly planned. Traffic drops happen when URLs change without 301 redirects, or when high-traffic pages are removed without a migration plan. Our process always starts with a full SEO audit to map what must not change.
Between 8 and 12 weeks for a full redesign. The first 2 weeks are dedicated to SEO audit and URL mapping. Design and development takes 6 to 7 weeks. Migration and post-launch monitoring takes the last 2 weeks. Timelines vary based on site size and integration complexity.
Yes, entirely. Pre-redesign audit, URL mapping, 301 redirects tested in staging, Search Console submission post-launch, 30-day organic traffic monitoring. If an anomaly appears after launch, we intervene immediately.
It depends on your CMS. If you're on WordPress, we can integrate it into a headless architecture or migrate to Sanity. If your CMS is proprietary or outdated, we often recommend migrating to Sanity CMS for performance and maintainability. We assess this during the audit.
Technically yes, but it's not what we recommend. A new design on an ageing architecture rarely delivers the promised performance. We prefer redesigning both design and tech together to guarantee Lighthouse 98+ and Core Web Vitals in the green. The overall cost is generally more cost-effective.
Every redesign is different: site size, customisation level, integrations, content catalogue complexity. We don't publish a price list. The best approach: a free audit of your current site, then a detailed quote within 24h based on your reality. No commitment.
Let's talk about your redesign
A free audit of your current site, no commitment.
We analyse your existing SEO, at-risk URLs, and current performance. You leave with a clear migration plan before even signing. Detailed quote within 24h.
5,0 sur Google+50 refontes livréesRéponse en moyenne sous 4h
Also explore