Higher score means the stronger domain authority that more likely to rank higher in the search engines and lower score means a weaker website that will have trouble ranking for competitive keywords. Domain Authority is an rating of a website like Page Rank And Alexa Rank. It is short termed as DA. Domain authority (DA) refers to the number of relevant backlinks- links to your website from other reputable website-your site has. The relevance of those backlinks also contributes to your score. read more......