Domain Authority Issue

[Richard_Syme]

My domain authority was 47 on 4 March 2019 but suddenly it goes down 36 on 6 March 2019 and our competitor is increased suddenly so what is the reason behind it?

[eli.myers]

Hey! Sorry for the confusion here.

We have updated the algorithm that calculates Domain Authority in order to predict a site’s ranking ability with even better accuracy. You can read more about this here https://moz.com/domain-authority-2.0

The changes you are seeing are a result of an update to the actual calculation of the DA score in order to more accurate depiction of your site’s influence over time.

Please note, when tracking your DA and the Link Building work you’re performing, DA should always be looked at in comparison to your target competitors, never as a standalone metric.

We’ll continue to improve our Domain Authority and Page Authority algorithms and strengthen our link index as the search landscape changes. In terms of future updates, we anticipate this new DA model being quite stable over time. We will keep track of possible changes that we might need to make and we’ll be sure to keep you updated.

I hope this helps but please feel free to reach out to us at help@moz.com if you have any other questions!

Eli