DA, or Domain Authority, is a score used by Moz to gauge the authority of a website. The higher the DA, the more authoritative the website. When you place an order, you’ll notice that DA is among the primary considerations that influence the price. Link from a higher DA website is much more difficult to obtain compared to websites with a lower DA score.
A backlink with a higher DA score typically gets more traffic and consequently passes more authority. This is what makes DA the crucial element when ordering a backlink, and why DA is a major influencer in link prices.