The verdict in three sentences
An aging industrial site loses organic traffic and leads every year due to slow load times and technical debt. In 2026, two paths: a from-scratch rebuild (EUR 15,000 to 45,000) or a progressive migration with a 301 redirect plan (EUR 8,000 to 25,000) that preserves earned rankings. The right call hinges on the volume of ranking pages and the link juice to keep, with a realistic target of -50% load time and +35% traffic at six months.
From-scratch rebuild vs migration: which scenario fits
A wholesaler that gets 60% of its quote requests through the site cannot afford a ranking drop. The choice is not aesthetic, it is financial.
| Criterion | From-scratch rebuild | Progressive migration |
|---|---|---|
| Budget 2026 (ex. tax) | EUR 15,000 - 45,000 | EUR 8,000 - 25,000 |
| Timeline | 8-14 wks | 6-10 wks |
| SEO risk | Medium to high | Low (controlled 301s) |
| Link juice preservation | Partial | High |
| Design freedom | Total | Constrained by existing |
| Ideal if | Obsolete site, < 80 pages | 200+ well-ranked pages |
When the site has hundreds of well-ranked product pages, migration with an exhaustive 301 redirect plan protects SEO capital. When the structure is obsolete and traffic is low, a full rebuild is more cost-effective.
The cost and gains in detail
The savings of a successful rebuild come from performance and traffic, not just design. Here are the line items and their 2026 impact.
| Line item | 2026 range (ex. tax) | Expected impact |
|---|---|---|
| Technical SEO audit | EUR 1,500 - 4,000 | Map of pages to preserve |
| 301 redirect plan | EUR 2,000 - 6,000 | Link juice preservation |
| UX/UI rebuild | EUR 5,000 - 15,000 | +25% conversion rate |
| Core Web Vitals optimization | EUR 2,500 - 6,000 | -50% load time |
| Content migration | EUR 3,000 - 9,000 | Zero loss of key pages |
| QA + 3-month follow-up | EUR 2,000 - 5,000 | Detect 404s and losses |
Add maintenance of EUR 300 to 800 per month and EU hosting to guarantee compliance and speed. The 90-day post-migration follow-up is non-negotiable: that is where missing redirects surface.
Mini case study
Sophie, marketing manager of a 45-employee industrial trading SME, runs a 260-product-page site. It loads in 5.1 s and organic traffic falls 12% a year. She chooses a progressive migration at EUR 19,000 with a full 301 redirect plan.
After six months: load time drops to 2.3 s (-55%), organic traffic recovers from 8,400 to 11,400 visits/month (+36%). At a 1.8% quote conversion rate, that is 54 extra requests per month. At an 8% close rate and a EUR 3,200 average order, the monthly gain is around EUR 13,800 in additional revenue: the project pays for itself in under two months of gained traffic.
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FAQ
Rebuild or migration: how do I decide?
If your site has fewer than 80 pages and little traffic, a from-scratch rebuild (EUR 15,000-45,000) is simpler. Above 200 well-ranked pages, migration with 301s (EUR 8,000-25,000) protects your earned rankings.
Will I lose my rankings during migration?
Not if the 301 redirect plan is exhaustive and tested before go-live. A temporary 5 to 10% dip over 2-4 weeks is normal, followed by a rebound if technical SEO is clean.
How long until I see SEO results?
Expect 3 to 6 months for a net organic traffic gain of around +35%. Speed gains (-50% load time) are immediate at go-live.
What maintenance budget after the rebuild?
Between EUR 300 and 800 per month depending on page volume, security updates and SEO follow-up. Active monitoring for the first 90 days avoids silent 404s that hurt rankings.
Is EU hosting really important?
Yes, for GDPR compliance, lower latency on your market and a better Core Web Vitals score. It is a modest line item (EUR 25-75/month) with a strong effect on perceived speed.
Let's scope your project. Tell us the number of pages on your current site, your monthly traffic and your goal (rebuild or migration), with an indicative budget. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
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.
