The verdict in three sentences
A serious SEO migration plan in Dublin in 2026 costs 1,500 to 4,000 EUR depending on site size. Without a rigorous 301 redirect plan, a rebuild can cost 10 to 40 % of organic traffic for months. With a managed plan, the loss stays under 5 % and recovers in 1 to 2 months.
What a migration plan covers in 2026
An SEO migration is not just a design change: it is a transfer of authority from URL to URL. The cost depends on the number of URLs and complexity (multilingual, e-commerce).
| Service | 2026 range (EUR) | Timeline |
|---|---|---|
| Migration plan brochure site (< 50 URLs) | 1,500 - 2,200 | 1-2 wks |
| Migration plan B2B site (50-500 URLs) | 2,400 - 4,000 | 2-4 wks |
| Before/after comparative crawl | 400 - 900 | often included |
| 301 redirect plan | 600 - 1,800 | 1-2 wks |
| Post-migration monitoring (3 months) | 800 - 1,800 | 3 months |
| Recovery after a botched migration | 3,000 - 8,000 | 2-4 months |
The most important line is not the plan cost but the recovery cost: fixing a failed migration costs 2 to 3 times more than doing it right.
Migration checklist: what protects traffic
Here are the critical points to validate before, during and after go-live.
| Item | Risk if skipped | Priority |
|---|---|---|
| 301 redirects (one-to-one) | 20-40 % traffic loss | Critical |
| Updated XML sitemaps | Slow indexing (+ 4-8 wks) | High |
| Hreflang tags (if multilingual) | Wrong country served | High |
| Preserved title/meta tags | CTR drop 10-15 % | Medium |
| HTTP to HTTPS redirect | Duplicate content | Critical |
| Comparative crawl of lost URLs | Orphan pages | High |
| Ranking tracking D+7 / D+30 / D+90 | Undetected drop | High |
One-to-one 301 redirects are the foundation: every high-traffic old URL must point to its equivalent, never en masse to the homepage.
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Mini case study
Julien runs a digital services B2B firm in Dublin, a 180-URL site with 12,000 organic visits/month. He migrates from WordPress to a headless CMS. Without a plan, a botched migration would lose 30 % of traffic, i.e. 3,600 visits/month for 4 months: at an equivalent paid cost of 1.20 EUR per visit, that is 17,280 EUR of lost value. Instead he pays a full plan at 3,200 EUR + 3-month monitoring at 1,200 EUR, total 4,400 EUR. Real loss: 4 %, recovered in 6 weeks. Estimated net saving: over 12,000 EUR.
FAQ
How much traffic could we lose? Without a plan, 10 to 40 % depending on redirect quality. With a rigorous plan, the loss stays under 5 % and is temporary.
Should we redirect to the homepage? No, never en masse: Google reads it as a soft 404. Every URL must point to its closest equivalent via a 301.
How long to recover everything? With a clean migration, 1 to 2 months. A botched migration can take 4 to 6 months and cost 3,000 to 8,000 EUR to fix.
Is post-migration monitoring essential? Yes: it detects a drop at D+7 before it settles in. Budget 800 to 1,800 EUR for 3 months of monitoring.
Can an e-commerce site migrate safely? It is more complex (product URLs, filters, pagination): expect the top of the range, 3,000 to 4,000 EUR, plus a mandatory comparative crawl.
Let's scope your project. Share your current and target CMS, the number of URLs and the go-live date, and we'll cost a safe migration plan. 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.
