URL Migration Playbook: How to Preserve SEO Value

Most ranking losses after redesigns are not caused by content quality. They are caused by URL mapping gaps. A migration without a redirect plan can erase years of link equity in days.

301 vs 302: Use the Right Signal

• 301 Permanent: use for stable URL moves and content consolidation.
• 302 Temporary: use only for short-lived tests or campaign pages.

Avoid Redirect Chains and Loops

Every extra hop adds latency and increases crawl friction. Always redirect the original URL directly to the final destination.

Migration Checklist (Professional Standard)

1. Inventory all current URLs: crawl + XML sitemap + analytics landing pages + backlinks.
2. Create 1:1 mapping: every old URL must have a relevant target or an intentional 410.
3. Ship redirects before launch: avoid a gap where bots can crawl raw 404s.
4. Update internal links in templates: do not rely on redirects for your own navigation.
5. Post-launch QA: scan with DeadLinkTool, then validate in Search Console coverage reports.

GEO Layer: Preserve Citability

AI assistants reference stable URLs over time. When historical links keep resolving correctly, your content remains citable and trustworthy in conversational answers.