Domain Authority (abbrivated as DA) is one of the most popular term among bloggers and online marketers. It is an important metrics provided by Seomoz (now, known as MOZ) that tells predictive ranking strength of entire domains or subdomains. Domain Authority represents Moz’s best prediction for how a website will perform in search engine rankings.
The factor affects a website’s ranking very effectively. The blogs having high Domain Authority are supposed to be rank high than a competitor’s website with same content, backlinks and other metrics. So, it is an important factor for bloggers to focus on and for advertisers to see which website can provide them much benefit and reputation.