A successful importer run is not final acceptance. Counts, relationships, rendering, redirects, feeds, and analytics must be checked against the approved baseline.
Reconcile entities
Compare posts, authors, labels, comments, loaded, skipped, failed, and unresolved totals at every migration stage.
Check chronology and ownership
Verify dates, status, authors, labels, comment parentage, and representative long discussion threads.
Crawl old and new URLs
Test one-to-one redirects, mobile variants, chains, loops, broken internal links, assets, canonicals, and sitemap entries.
Monitor after cutover
Track crawl errors, indexed pages, landing-page traffic, feed behavior, forms, and conversions during stabilization.