Free tool · no access code needed
Every stage of a move to Drupal, in order — from content-model mapping before anything changes to what to watch in the weeks after launch. Weaves in the Drupal-specific parts (Pathauto, the Redirect module, Migrate API, Metatag, Simple XML Sitemap) alongside the platform-agnostic SEO work every migration needs. Ticks are saved in this browser, so you can close the tab and pick up where you left off.
This checklist is a reference, not a guarantee — every Drupal build has its own contrib-module mix and custom code. The linked tools check the things that are easy to get wrong silently: redirects, canonicalization, structured data and crawler access.