Migration Tools

The migration tools exist in order to update or migrate discussion threads on your site to a new thread. Common scenarios when you might use this are:

  • You change your domain
  • You change your CMS/blogging system and the article URL structure is no longer the same
  • Two different discussions need to be merged into one

Considerations and limitations

  • If merging two threads together, this cannot be undone
  • The migration tools will not migrate comments to a new Disqus shortname, so be sure to use the same shortname on the new site.
  • Migrations can take up to 24 hours to finish, and we suggest checking its progress occasionally during that time (by looking for the updated comment threads on a page where they did not previously exist).
  • If you're using a custom disqus_identifier this will still play a role. If two threads are merged into the same URL and have different identifiers as well, the new thread will contain both identifiers

Where to find these tools

Go to your Disqus Admin and click Discussions > Tools > Migrate Threads.

Thread Migration Options

Migration options available


  • Domain Migration Wizard - If the base domain of your website has recently changed, you'll need to migrate the URLs of your commenting threads to use the new base domain (ex: www.old-url.com -> new-awesome-url.com).
  • URL Mapper - If the URL slug of your site's posts has recently changed, you'll need to use our URL Mapper to migrate your commenting threads from the old URL to the new one (ex: yourdomain.com/p=23 -> yourdomain.com/new-page-slug).
  • Redirect Crawler - If you've already setup 301 redirects for your site's pages, then use our Redirect Crawler to crawl your site's pages and migrate the URLs of your commenting threads automatically. Recommended for advanced users only.
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