On my latest report we have dropped one point on Domain authority. I also note that our 3 competitor rankings have dropped as well. Has something changed to make this occur.

[Fodders]

On my latest report we have dropped one point on Domain authority. I also note that our 3 competitor rankings have dropped as well. Has something changed to make this occur.

[Fodders]

Thanks Tom, makes sense to me. Thats a lot of crawling.

[TomRayner]

1 point is pretty negligible, so I wouldn't worry at all.  However, this can be explained.

A number of things go into how Domain Authority is scored.  You can find them via this link.  PA/DA is in a constant flux, so your site may not have changed at all, but the quality of the sites linking to you may have done.

It should also be remembered as well that the Mozscape index changes in size each time it's crawled.  This month's update saw 77 billion URLs crawled, up from 70 billion the month prior.  You can see a history of updates here.  With an increase of 7 billion URLs, it is easy to see why the domain authority average may have changed for your site.  The index may have crawled more or less websites linking to you, the websites that link to them and so on and so on.

A drop of 1 point doesn't indicate you've done anything wrong on your end.  Indeed, if your competitor has dropped as well, I'd share it's more to do with the index and API calculations changing slightly than you.  But a fall of 1 point is very small, so it's normal service as far as I can see.

Hope these links help clarify a few points.