SEO Site Migration Checklist: Redesigns, Domain Changes and URL Migrations
- 1digiethic.com/blog/seo-site-migration-checklist#1
SEO Site Migration Checklist
- 2example.com
A national directory listing
- 3example.com
A competitor's old blog post
- 4example.com
A comparison site
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Quick answer
A website migration is any big change to your URLs, domain, platform or structure. To keep your rankings, crawl and benchmark the old site, map every old URL to its new one with a 301 redirect, keep the content and titles on your best pages, test everything on staging, then watch Search Console, rankings and traffic closely for several weeks after launch.
Key takeaways
- The redirect map is the most important document in any migration.
- Write down traffic, rankings and indexed pages before launch, so you can compare.
- Keep the content and titles that already rank unless you have a good reason to change them.
- Some wobble is normal. A big drop usually means redirects or indexing went wrong.
Types of website migration
Not every change carries the same risk:
| Type | Example | Risk |
|---|---|---|
| Redesign (same URLs) | New theme | Low–medium |
| URL / structure change | /services.php → /services/ | High |
| Platform change | WordPress → Shopify | High |
| Domain change | old.com → new.com | High |
| HTTP → HTTPS | Security upgrade | Low (if redirected) |
The ones that hurt are usually the ones nobody called a migration. "We're just moving to a new theme" turns into new URLs, missing pages and lost rankings.
Before launch
Most of the work happens before anyone presses publish:
- 1Crawl the old site and export every URL
- 2Export your top pages by traffic, links and conversions
- 3Build a one-to-one redirect map: each old URL to its most relevant new URL
- 4Keep the titles, H1s, copy and internal links on your top pages
- 5Block the staging site from Google
- 6Test redirects, canonicals, robots.txt and sitemaps on staging
Don't redirect everything to the homepage. Google treats that much like a missing page, and visitors hate it.
Launch day
- Switch on the 301 redirects and remove the staging noindex
- Submit the new XML sitemaps in Search Console
- For a new domain, use Search Console's Change of address tool
- Spot-check redirects for your top pages by hand
- Confirm analytics and conversion tracking still fire (GA4)
That noindex step sounds obvious. It's also the single most common launch mistake we're called in to fix.
After launch
Keep watching for four to eight weeks: the Page indexing report, crawl errors, 404s, rankings for your key terms, organic traffic and conversions. Fix redirect chains and missing redirects as soon as they show up.
Google explains the process in its site move guide. The short version: a well-planned move usually recovers within weeks, and a badly planned one can take months.
Planning a redesign?
Our SEO web design service includes the redirect map and the pre-launch SEO checks as standard. If you've already launched and traffic has dropped, our technical SEO team can audit what went wrong and fix it.
Frequently asked questions
Will a website migration hurt SEO?
There may be short-term fluctuation, but a well-planned migration with complete redirects usually recovers within weeks. Big losses come from missing redirects or removed content.
How long do redirects need to stay in place?
Keep them at least a year, ideally permanently, especially for pages with backlinks.
What is a URL migration?
Changing the addresses of existing pages, which requires 301 redirects from old URLs to new ones.
Sources
Platform rules change often, so we check sources at every update. Last reviewed October 12, 2026.
Written by
Zia Ur Rehman
Founder & Lead SEO Strategist, DigiEthic
Zia Ur Rehman is the founder of DigiEthic, with 14 years of experience in digital marketing. He works hands-on across technical SEO, AI search optimization (AEO/GEO), Local SEO, Google Ads and Meta Ads for service businesses and e-commerce brands.
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