The verdict in three sentences
A redesign loses traffic only if the SEO migration is botched : bad 301 mapping, orphan URLs, thinned content. A serious SEO migration service (CAD 5,000 to CAD 13,000 in 2026) recovers 90 to 95% of organic traffic within 8 weeks. The core deliverable is an exhaustive 301 redirect map, tested before and verified after go-live.
Which SEO migration method to choose
Two schools compete : the big-bang migration and the progressive migration. The choice depends on site size and risk tolerance.
| Criterion | Big-bang migration | Progressive migration |
|---|---|---|
| 2026 cost | CAD 5,000-8,500 | CAD 8,500-13,000 |
| Loss risk | Concentrated on D-day | Spread and controlled |
| Timeline | 4-6 weeks | 8-12 weeks |
| Suited to | Sites < 200 URLs | Sites > 500 URLs |
| Post-migration follow-up | 3 months included | 3-6 months included |
| Rollback | Complex | Section by section |
| Traffic recovery | 6-8 weeks | 4-6 weeks |
The SEO migration checklist
A loss-free migration follows a strict protocol. Here is the itemized checklist any serious provider applies in 2026.
| Step | Action | Deliverable |
|---|---|---|
| 1. Pre-crawl | Map 100% of URLs | Complete inventory |
| 2. 301 mapping | Match old/new URL | Redirect table |
| 3. Content preservation | Keep titles, Hn, meta | Iso or enriched content |
| 4. Staging QA | Test each 301 | Zero-404 report |
| 5. DNS switch | Controlled go-live | Validated go-live |
| 6. Post-crawl | Verify live redirects | Post-migration report |
| 7. 3-month follow-up | Monitor rankings & traffic | Monthly reporting |
Mini case study
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Ms. Tremblay, marketing director of a services SME in Montreal (22,000 organic sessions/month), redesigns her website. She fears losing rankings on 40 strategic keywords. She orders a progressive SEO migration at CAD 11,000, 3-month follow-up included. Thanks to the exhaustive 301 mapping, peak loss is capped at 8% for 3 weeks, then traffic climbs back to 96% of the initial level by week 7. Without the service, a typical 35% drop would have cost ~7,700 sessions/month : at a 1.5% conversion rate and CAD 350 per lead, avoided loss exceeds CAD 40,000 over the quarter. Verdict : service more than pays for itself.
FAQ
How long to recover my traffic after migration? With clean 301 mapping, count 4 to 8 weeks to return to 90-95% of the initial level. A botched migration may never recover.
Is the 301 mapping really essential? Yes : it is the heart of the migration. Every indexed old URL must point to its equivalent, or 404s will destroy your SEO.
Must old content be kept identical? Keep at minimum titles, Hn structure and meta. You may enrich, never impoverish : Google compares before/after.
What budget for an SME? Between CAD 5,000 and CAD 13,000 depending on site size and method. The 3-month follow-up is essential and must be included in the quote.
Can we migrate without a specialist? It is risky beyond 100 URLs : one redirect error on high-traffic pages often costs more than the service itself.
Let's scope your project. Tell us your URL count, organic traffic and redesign date : we price the SEO migration and follow-up. 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.
