If I migrate to a new domain, does my Domain Authority score get migrated also?

[KenSchaefer]

For business reasons, I migrated my domain with a DA score of 85 to a new domain.  After some time, the DA score on the new domain is only 45.  My migration plan and redirects went smooth and all redirected with best practices in mind.  I am still ranking well for almost all of the keywords where I've 301 redirected old URL to new.

Any feedback welcome!

[samantha.chapman]

Hi there,

Sam from Moz's Help Team here!

Sorry for any confusion.

So the thing is, for us to update any 301 link, we would need to re-discover the old pages to be able to follow and update the metrics.

As our index continues to grow and links are rediscovered, links which have changed should be marked as “lost” for the original domain and “discovered” for the new domain. In order for our crawler to update metrics to reflect the new domain, it would need to recrawl the pages linking to your site and discover the links which redirect.

The discrepancies between the DA of your old domain and new domain are probably due to the previously externally discovered links that haven't moved over just or haven’t been discovered. I hope this helps to explain - definitely let me know if you have any follow up questions!