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CMS Migration

A CMS migration is the process of moving website content, structure, configuration, or functionality from one CMS or installation to another.

A CMS migration is the process of moving website content, structure, configuration, or functionality from one content management system or installation to another.

A migration involves more than copying text between databases.

What May Need to Move

A CMS migration can involve:

Some of those items may not have a direct equivalent in the destination platform.

Why Migrations Become Complicated

CMS platforms model information differently.

For example:

  • Categories may become tags
  • Page-builder modules may become raw markup
  • Custom post types may not have equivalents
  • Plugins may own their own database tables
  • Media paths may change
  • User permissions may use different role systems
  • URLs may need restructuring

Ghost's WordPress migration documentation is a useful real-world example: standard posts and pages can migrate relatively easily, while custom post types, uncommon shortcodes, and plugin-controlled content may require additional work.

Technical SEO Considerations

A migration can affect Technical SEO if URLs, metadata, internal links, or page rendering change.

Important considerations include:

The migration should preserve valuable URLs wherever practical.

Why It Matters

Migration is where hidden CMS dependencies become visible.

A platform that seemed simple may reveal content stored across:

  • Plugins
  • Theme settings
  • Page-builder shortcodes
  • Custom Fields
  • External databases
  • Proprietary APIs

That is one reason portability should be considered before a migration becomes necessary.

Ghost provides direct JSON and CSV export options, while platforms such as Contentful also document available data-export mechanisms.

Common Problems

Common migration problems include:

  • Treating migration as copy-and-paste
  • Migrating outdated content unnecessarily
  • Changing every URL
  • Forgetting images
  • Breaking internal links
  • Moving content without its structure
  • Copying old taxonomy problems into the new CMS
  • Rebuilding every old feature regardless of whether it remains useful

How to Improve

Audit before migrating.

Decide:

  • What stays
  • What changes
  • What gets consolidated
  • What gets removed
  • Which URLs must remain
  • Which functionality actually needs replacement

A migration is often a good opportunity to simplify the system rather than reproduce every historical decision.