Technical SEO Migration Checklist & Cost from Berlin (2026)

The verdict in three sentences

A site migration without an SEO plan loses 15-40 % of organic traffic, sometimes permanently. In Berlin in 2026, a pre-migration audit of EUR 1,500-4,500 and a rigorous 301-redirect plan protect the ranking asset. The project runs 3-6 weeks, followed by 2-3 months of monitoring to catch any anomaly before it becomes a lasting loss.

The technical checklist that protects traffic

A migration (new design, new domain, new CMS, HTTPS move) touches hundreds of URLs. Every URL that changes without a correct 301 redirect is a lost signal for Google. Here are the workstreams you must cover.

The most critical point remains the 301-redirect plan: every indexed old URL must point to its equivalent, never to the homepage alone.

Cost and timeline of a controlled migration

Overall, a serious migration for a Berlin SME budgets EUR 5,500-13,000 depending on site size, monitoring included. It is insurance: the traffic loss of a failed migration costs far more in missed leads.

Mini case study

Markus, digital lead of a B2B distributor in Berlin-Mitte, rebuilds a 320-page site generating 9,000 organic visits/month. Without an SEO plan, an estimated 30 % loss means 2,700 visits/month gone, i.e. around 45 lost leads per month. He invests EUR 8,000 in an audit, a full 301 mapping and 3 months of monitoring. Result: traffic loss capped at 4 % in month one, recovered by week 6. The audit cost equals less than two months of saved leads.

FAQ

What is the real risk of a migration without SEO? A loss of 15-40 % of organic traffic, often lasting if 301 redirects are missing or wrong. Some sites never recover their initial level.

How much does a pre-migration audit cost in Berlin? Between EUR 1,500 and 4,500 depending on site size and complexity. This is the step never to skimp on: it conditions everything else.

How long does a migration take? The technical project runs 3-6 weeks, but follow-up goes beyond: expect 2-3 months of monitoring to confirm ranking stability.

Should everything redirect to the homepage? No, that is the classic mistake. Each old URL must point to its closest equivalent; redirecting everything to the homepage destroys accumulated authority.

Which KPIs to watch after migration? Organic traffic, indexed page count, 404 errors and ranking movements in Search Console. Any anomaly should be fixed within 72 hours.

Let's scope your project. Send us the page count, migration type and your timeline: we'll cost an audit and a secure redirect plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.