Good Domain Authority (Moz DA) score?
According to Moz, there is not really a "good" or "bad" domain authority score.

In general, the closer a website's DA PA is to 100, the more likely it has a good domain authority. Similarly, the closer a website's score is to 0, the lower its DA score will be.

Below is a table for general understanding of what is a good authority score.

Domain Authority Level
0-10 Worst
10-30 Bad
30-40 Acceptable
40-50 Average
50-60 Good
60-90 Excellent
90-100 Ideal