How to Audit Redirects Before and After an SEO Migration

How to Audit Redirects Before and After an SEO MigrationRedirect audits should occur both before launch and after deployment. Pre-migration testing catches incorrect mappings before they affect users, while post-launch auditing identifies implementation failures that only appear in production.

1. Inventory Existing RedirectsCollect current redirect rules and identify chains, loops, temporary redirects, and redirects pointing to outdated destinations.

2. Build the Migration MapCompare old URLs with their planned new destinations. Prioritize high-value pages for manual verification.

3. Test Status CodesVerify that intended permanent URL changes return the appropriate redirect response and ultimately resolve to accessible final URLs.

4. Detect ChainsTest redirect paths rather than checking only the first response. A URL that redirects through multiple intermediate destinations creates unnecessary complexity.

5. Detect LoopsIdentify rules where URLs redirect back to themselves or form circular paths.

6. Check RelevanceConfirm that redirects lead to destinations serving a meaningful continuation of the original page's purpose.

7. Audit Internal LinksAfter migration, identify internal links that still point to redirected URLs and update them to final destinations where appropriate.

8. Review Search ConsoleMonitor indexing, crawl errors, traffic, and affected URLs after launch. Look for patterns that suggest missing or incorrect redirects.

9. Analyze Server LogsWhere available, review crawler requests to identify old URLs receiving requests and determine whether unexpected redirect patterns remain.

10. Re-Crawl the SiteRun a full post-launch crawl and compare redirect behavior against the pre-launch mapping.

ConclusionRedirect auditing should be a two-stage process. Validate mappings and chains before launch, then re-crawl production, review internal links, Search Console, server logs, and status codes after deployment.