Migrate or replatform a website without risk: keep your SEO, redirects, rollback

A website migration is one of the riskiest projects in digital, yet one of the most poorly prepared. A company rebuilds its site, switches platforms, goes live on a Monday morning, and a few weeks later discovers its Google traffic has halved. Pages changed addresses, redirects were not done, Google lost the thread, and years of search ranking evaporate. The good news: a migration can be done with zero loss if it is methodical. The difference between a successful migration and a disaster is preparation alone.

Why migrate or replatform

Switching platforms

You are on obsolete technology, slow, hard to maintain, or unsuited to your growth. You move, for example, from an old hand-built site to a modern platform, or from a proprietary solution to something more open.

Redesigning completely

The site is outdated in both substance and form: aging design, inconsistent structure, not mobile-friendly. You rethink everything.

Changing domain

Rebranding, merger, name change: you move from one domain name to another, the most delicate operation for search ranking.

Migrating hosting

Sometimes you simply change hosts for better performance or more reliability. This is the lowest-risk migration, but it still deserves care.

In every case, the watchword is the same: do not lose what already works, starting with your search ranking and your loyal customers.

The number-one risk: losing your SEO

This is the major danger. Your site may have hundreds of pages indexed by Google, each with a precise address and authority accumulated over years. If these addresses change carelessly, Google ends up facing missing pages (404 errors), loses track of your content, and your position in results collapses.

Keep addresses or redirect

The golden rule: every old address must either stay identical or be cleanly redirected to its new version. A permanent redirect (301 code) tells Google the page has definitively moved and passes the accumulated authority to it. Without this redirect, the authority is lost.

Map before you migrate

First of all, list every existing page, its traffic, its ranking, the links pointing to it. This map is the foundation: it tells you what to redirect and to where. Skipping this step means migrating blind.

The plan for a risk-free migration

Step 1: the full audit

We inventory every existing URL, identify high-traffic and high-value pages, note redirects already in place, and record the current structure. We take a precise snapshot of the search ranking before migration, to serve as a comparison point.

Step 2: the redirect map

For each old URL, we define the new one. When a page disappears, we redirect it to the closest page, never bluntly to the home page. This redirect plan is the most important document of the whole migration.

Step 3: preparation in a test environment

The new site is built and validated on a staging environment, invisible to Google (and blocked from indexing), where everything is tested without touching the live site.

Step 4: pre-switch verification

We check redirects one by one, verify the SEO tags (titles, descriptions, structured data), test forms, payment, mobile display, speed. Nothing is left to chance.

Step 5: the switch

We pick a low-traffic moment, go live, activate the redirects, and submit the new sitemap to Google. You never migrate on a Friday night or the eve of a big commercial operation.

Step 6: post-migration monitoring

In the following days and weeks, we monitor closely: 404 errors, traffic evolution, indexing of new pages, Google behavior. We immediately fix any missing redirects detected.

The rollback: your safety net

No migration should happen without a rollback plan. Before the switch, we keep a full, working backup of the old site. If a serious problem appears after going live (the site does not work, a critical feature is broken, payment fails), we must be able to return to the previous state within minutes, buying time to fix things calmly. Migrating without a safety net is gambling your business on a roll of the dice.

Mini case study: an e-commerce site in Dakar

A Dakar e-commerce site on an aging platform wanted to move to a modern, faster, more mobile-friendly solution. The site received significant organic traffic, the fruit of several years of search ranking. We began by mapping the roughly three hundred existing URLs and their traffic. For each, a 301 redirect was prepared to its new address. The new site was built and validated on a test environment blocked from indexing. The switch took place on a Sunday morning, the lowest-activity period, with a full backup of the old site ready for a rollback. In the hours after going live, we tracked 404 errors and fixed two forgotten redirects. The result: organic traffic was not only preserved but grew in the following weeks thanks to the better speed and mobile adaptation. The key was not luck, but the mapping and the redirects.

The classic pitfalls

The first pitfall is forgetting redirects, or redirecting everything to the home page instead of the equivalent page: Google reads this as a missing page. The second is letting the test environment get indexed by Google, creating duplicate content. The third is migrating without a backup. The fourth is not monitoring after the switch and discovering the traffic drop too late. The fifth is changing the domain, structure, design and platform all at once: stacking simultaneous changes makes any diagnosis impossible when something goes wrong. When possible, change one thing at a time.

What it costs

The cost depends on the scope. Indicative ranges in Senegal:

• Simple hosting migration: 300,000 to 800,000 FCFA.
• Replatforming with a redirect plan and SEO preservation: 1,500,000 to 5,000,000 FCFA.
• Full redesign with SEO migration and domain change: 6,000,000 FCFA and up.

Investing in a careful migration always costs less than rebuilding lost search ranking, which can take years.

FAQ

Will I lose my Google ranking when migrating?

Not if the migration is done well. The key is to map every old address and 301-redirect them to their new versions. A careful migration preserves, and even improves, the ranking.

What is a 301 redirect?

It is a permanent redirect that tells Google a page has definitively changed address. It automatically sends visitors to the new page and passes on the SEO authority accumulated by the old one.

How long before I recover my traffic after a migration?

With a good redirect plan, traffic is preserved from the start. Google takes a few days to a few weeks to fully reindex the new site, a period during which we monitor closely.

What do I do if the migration goes wrong?

We trigger the rollback: a return to the backup of the old site, kept before the switch, which lets us go back to the previous state within minutes while we fix the issue.

When is the best time to migrate?

A low-traffic period, never before a big commercial operation nor on a Friday night. You want room to monitor and fix calmly after the switch.

Let's talk about your project. A successful migration hinges entirely on preparation: audit, redirects, tests, rollback. We migrate your site without losing your traffic. Message us on WhatsApp +221 77 596 93 33.