Migration work is about reducing risk before anything goes live.
Quick answer
Before a website migration, check URL mapping, redirects, canonicals, internal links, metadata, tracking, XML sitemaps, robots directives, staging crawlability and priority page coverage. The most important work happens before launch, not after rankings drop.
Most migration problems are preventable.
Traffic drops after a migration often come from missed planning. Redirects are incomplete, important pages disappear, templates change unexpectedly, or tracking breaks at the exact point you need visibility.
Pre-launch checks.
- Build a full URL map
- Map old URLs to the best new equivalents
- Test redirect rules before launch
- Crawl the staging site
- Check canonicals and indexation directives
- Review title tags, headings and content changes
- Check internal links and navigation
- Prepare new XML sitemaps
- Confirm analytics and GSC access
Prioritise important URLs.
Not every URL carries the same risk. Focus first on pages with organic traffic, backlinks, conversions, rankings or strategic value. Those pages need the cleanest mapping and strongest checks.
This is where SEO migration support protects the pages that matter most.
Do not leave SEO until launch week.
SEO checks need to happen while there is still time to fix issues. If the first proper review happens after launch, the team is already reacting.
Practical checklist
- Export current URLs
- Prioritise traffic and backlink pages
- Complete redirect mapping
- Crawl staging
- Check indexation directives
- Test tracking
- Prepare post-launch crawl
Common mistakes
- Mapping every old URL to the homepage
- Blocking staging then forgetting launch settings
- Changing content without SEO review
- Missing analytics checks
- Not crawling after launch
When to get support
If this sounds familiar, Migration Support gives you practical SEO recommendations, clear priorities and next steps that are easier to implement. This note also supports Technical SEO.
FAQ
When should SEO be involved in a migration?
As early as possible, ideally before URL structures, templates and content decisions are final.
Do all old URLs need redirects?
Any valuable or accessible old URL should have a relevant redirect. Priority should go to URLs with traffic, links, rankings or business value.