In Dakar, I regularly meet owners with a 4-year-old WordPress site, slow and not converting, asking the same question: "Redesign or start over?" The answer depends on 7 objective technical and strategic criteria. Here's the matrix.
TL;DR
- Keep + redesign = 30-50% cheaper than starting over, but only if the foundation is healthy.
- 7 discriminating criteria: tech age, Core Web Vitals, existing SEO, CMS, design system, content, security audit.
- Score < 4/7 = start fresh. Score ≥ 5/7 = targeted redesign. Score 4/7 = case-by-case.
The 7-criteria matrix
Score each criterion 0 (bad) or 1 (acceptable). Total over 7.
Criterion 1 — Tech stack age
- 0 if site on non-Gutenberg WordPress, Joomla, Drupal 7, or proprietary builder (Wix without export)
- 1 if Next.js / React / Vue / Astro / modern WordPress (2022+) with headless
Criterion 2 — Core Web Vitals performance
Test on pagespeed.web.dev:
- 0 if LCP > 4s, INP > 500ms, CLS > 0.25 (mobile)
- 1 if all metrics in green (mobile)
Criterion 3 — Exploitable existing SEO
Test on Google Search Console:
- 0 if < 100 keywords ranked top 50, or no GSC history
- 1 if ≥ 100 keywords ranked or ≥ 1,000 organic visitors/month
Criterion 4 — Manageable CMS / content
- 0 if changing text needs a developer
- 1 if client can edit text/images/articles autonomously
Criterion 5 — Coherent design system
- 0 if each page has its own font / colors / different components
- 1 if reusable design tokens, homogeneous components
Criterion 6 — Quality content
- 0 if ≤ 10 pages, ≤ 5 blog articles, low-quality photos
- 1 if ≥ 25 pages, ≥ 30 articles, pro photos, FAQ, testimonials
Criterion 7 — Security audit OK
- 0 if critical vulnerabilities (outdated WP plugins, no HTTPS, unprotected forms)
- 1 if valid HTTPS, no known vulnerability, GDPR-compliant
The decision tree
| Score | Recommendation | Typical budget |
|---|---|---|
| 0-3 | Start fresh | 1.2-2.5M FCFA for Pro Next.js |
| 4 | Case-by-case: redesign if solid SEO (criterion 3 = 1), fresh otherwise | 600K-1.5M |
| 5-6 | Targeted redesign on the 0-criteria | 400-900K FCFA |
| 7 | Continuous optimization only | 80-200K FCFA / quarter |
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Why redesigning sometimes costs more than starting over
Counter-intuitive but common: redesigning a WordPress with 25 custom plugins and 6 years of "patches" can take more time than a fresh Next.js. Signals it's better to start over:
- More than 15 WordPress plugins, 3+ unmaintained
- Child theme impossible to evolve without breaking parent
- MySQL DB > 500 MB for a site < 100 pages (cruft)
- Undocumented custom code by a dev gone for 3+ years
- jQuery + WordPress core + injected Vue/React mix = tech debt
The case that changes everything: existing SEO
If your site generates ≥ 1,000 organic visitors/month from Google, keep the URL and redirect smartly. Starting over = losing 6-12 months of SEO. Solution:
- Next.js migration with systematic 301 redirects (old URL → new URL)
- Migrated sitemap with Search Console announcement
- Existing content kept (rewritten, not deleted)
Additional SEO migration cost: 200-400K FCFA. ROI = near-instant.
The "cheap that ends costly" trap
I regularly see: "My cousin redoes it for 250K". 6 months later, site doesn't convert, SEO is broken, client pays 1.5M for a pro redo. Total = 1.75M instead of 1.2M direct.
Rule: if a dev offers 30-50% below market, ask what they're cutting. Answer: tests, perf, security, accessibility, technical SEO. Exactly what makes the difference at 12 months.
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Want your free 7-criteria score calculated?
Kolonell audits your existing site in 48h at kolonell.com/en/audit-gratuit or WhatsApp +221 77 596 93 33.
FAQ
How long for a redesign vs new site?
Targeted redesign: 4-8 weeks. New site: 6-12 weeks. Difference is more in complexity than duration.
Can I redesign only the look without touching SEO?
Yes, if you keep URL structure and content. That's the "visual refresh" scenario → 300-600K FCFA, no SEO risk.
What if the site has under 100 visitors/month?
No SEO capital to preserve → starting fresh is almost always more profitable than redesigning.
Is WordPress still relevant in 2026?
Yes for blogs > 200 articles with intense editorial needs. No for showcase + e-commerce where Next.js + headless Sanity/Strapi is superior.
Mohamed Ba
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.


