Hi,
Domain Authority is Moz’s calculated metric for how well a given domain is likely to rank in Google’s search results.
Domain authority is based on combination of all other link metrics—linking root domains, number of total links, MozRank, MozTrust, etc.—into a single score
It’s best to use Page Authority (PA) and Domain Authority (DA) as comparative metrics when doing research in the search
results and determining which sites/pages may have more powerful/important link profiles than others.
If a website has a much higher page authority than domain authority (like above) then it's a sign to me that it isn't that good. It'd be much better to have a higher domain authority ( or equal ) than page authority because it will show that the website has been up and running for a while.
So I see Domain Authority to typically be a much stronger candidate for results & Ranking. Hope it answers your question.