Domain Authority Drop After Website Relaunch

[Kingalan1]

Prior to my website redesign and relaunch on July 10th, our domain authority was 33.

301 redirects were implemented properly. Out or 600 pages, about 200 URLs were modified.

Domain authority has dropped to 28. Rankings are terrible. Conversions are awful.

What does the domain authority drop mean? I have noticed in the past that a drop in domain authority tends to coincide with more a drop in ranking and a drop in the quality of visitors.

The site is www.metro-manhattan.com

Thanks,
Alan

[MichaelC-15022]

Since DA is a Moz metric, we're not looking at a case where all of a sudden a whole bunch of domains linking to you have been devalued, nor are we looking at a penalty.

The only conclusion I can come to is that Roger is no longer seeing a bunch of links it used to see.  If that's the case, then that probably means that a set of domains that used to link to you are now offline.  And if that's true, then Google is also going to see the drop, and your rankings will slide accordingly.

That's my best guess.

[Kingalan1]

Hi Michael:

301 redirects were implemented. Some 404s occurred in the weeks after the launch but they were redirected.

Thanks,
Alan

[MichaelC-15022]

Your DA shouldn't be affected by your redesign, unless perhaps you've eliminated a number of pages that had strong links and those are now 404'ing.  Are you seeing any 404s in Google Webmaster Tools?  That would be where I would look to find external inbound links that are now broken.