Why would DA and Home Page PA divurge

[btreloar]

I track home page Page Authority and Domain Authority. Normally they move in a similar fashion. However for at least one client I see them moving in markedly opposite directions. One client has seen their Home page PA increase from 29 to 33 ov er the past year or so while their DA is dropped from 22 to 16.

Potentially related are odd trends in home page inbound link counts and linking domains. Moz reported 241 inbound link to the home page last December, and 324 now. For the months April through July, however, Moz reported link counts between 1150 and 1350. Linking domains improved from 120 last December to 324 now.

I of course recognize that raw counts of links and linking domains need to be tempered with quality considerations. But still, I'm finding is puzzling and wondering if anyone has any thoughts about why the Page Authority and Domain Authority would be diverging..

B8W2wuB