Site Migration SEO
Site Migration SEO is an SEO topic covered in SeoWiki.
Key takeaways
- Google recommends preparing the new site thoroughly before launch and creating a URL mapping from old URLs to their new equivalents.
- Old URLs should redirect to the corresponding new URLs so search engines and users can reach the replacement pages.
- A staging environment should be used to test changes before going live, and it should be crawlable for testing but not indexable.
A migration can quickly cause organic traffic loss if redirects, internal links, canonicals, sitemaps, or robots directives are mishandled. For SEO practitioners, a disciplined migration plan reduces ranking volatility and helps search engines understand which old URLs should map to which new URLs.
Example
Google recommends preparing the new site thoroughly before launch and creating a URL mapping from old URLs to their new equivalents.
Quick start
- Define the goal for this topic.
- Check the live SERP format.
- Improve one page that matches the intent.
- Measure in Google Search Console.
Common mistakes
- Treating the topic as a one-time task
- Ignoring search intent
- Copying tactics without checking your SERP
Next step
FAQ
What is site migration SEO?
Site migration SEO is the process of moving a website to a new domain, platform, structure, or URL set while preserving crawlability, indexation, traffic, and rankings.
When is the best time to execute a site migration?
The best time is during a low-traffic period (e.g., weekends or holidays) to minimize impact on users and allow time to fix issues before peak traffic returns.
How long does it take to recover rankings after a site migration?
Recovery can take weeks to months depending on the scale of changes, redirect accuracy, and how quickly search engines recrawl the new site. There is no fixed schedule.
What is the most common mistake in site migration SEO?
Launching without a complete URL-to-URL redirect map, which leads to 404 errors and loss of link equity.
Related topics
Sources
- Google Search Central: Site Moves and Migrations — Primary guidance for URL changes, redirects, and post-move monitoring.
- Google Search Central documentation — Official reference for crawl, indexation, sitemaps, robots, and migration-related technical SEO.
- Google Search Central: Search Console Help — Useful for sitemap submission, URL inspection, and migration troubleshooting.
Reviewed by Lucía Marín, Founding editor.