How to Migrate Your Website Without Losing SEO Rankings

A website migration — whether you’re changing platforms, redesigning the site, switching domains, or moving to a new host — carries significant SEO risk if it’s not managed carefully. Many businesses have watched their organic traffic drop by 50 per cent or more in the weeks following a poorly executed migration.

The good news is that SEO-safe migrations are entirely achievable if you follow a structured process. This guide covers what to do before, during, and after a migration to protect your hard-earned search rankings.

Pre-Migration Preparation

The first step is to create a complete inventory of your current site. Crawl the entire site using a tool like Screaming Frog or Sitebulb and export every URL, along with its page title, meta description, H1, word count, and inbound link count. This is your baseline — the record against which you’ll compare the new site.

Use Google Search Console to identify which pages are currently indexed and which are receiving impressions and clicks. These are your highest-priority pages. Any page receiving organic traffic needs to either be preserved at the same URL or redirected to an equivalent page on the new site.

If you’re changing domain (for example, moving from an old brand to a new one), download your existing backlink profile from Ahrefs or Google Search Console. These links pass authority to the new domain via your 301 redirects — but only if those redirects are correctly implemented.

Building and Testing the Redirect Plan

A redirect plan is a mapping of every old URL to its new equivalent. For each URL in your crawl export, identify where it should redirect to. If the page is being removed with no direct equivalent, redirect to the closest matching category or the homepage.

Implement the redirects before you switch DNS. Test them on the staging environment using a tool like Screaming Frog’s redirect checker. Confirm that every old URL returns a 301 (permanent) redirect — not a 302 (temporary), and not a chain of multiple redirects, which dilute link equity.

Test the staging site thoroughly before launch: check that all internal links point to new URLs (not via redirects), that images load, that forms submit correctly, and that analytics tracking is in place. A staging review with fresh eyes — ideally someone who hasn’t been involved in the build — catches things the team has become blind to.

At Xpose in Norwich, we include a full redirect audit and pre-launch SEO check as standard for any migration project. Getting this right at the start avoids costly remediation after the site goes live.

Post-Migration Monitoring

Immediately after launch, submit your new sitemap to Google Search Console and request re-indexing of your highest-priority pages. Monitor the Coverage report daily for the first two weeks to catch any indexing issues early.

Watch your organic traffic in Google Analytics for the four weeks following migration. Some fluctuation is normal as Google re-crawls and re-evaluates your content. A gradual recovery is expected; a sudden and sustained drop signals a problem that needs urgent investigation.

Check for soft 404s — pages that return a 200 status code but display "page not found" content. These are easy to miss but confuse Google and dilute your crawl budget. Search Console’s Coverage report will flag them if they exist.