Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how well a website will rank on search engine result pages (SERPs). DA scores range from 0 to 100, with higher scores indicating a greater likelihood of ranking higher on SERPs.
Domain Authority is calculated by evaluating multiple factors, including the number and quality of external links pointing to a site, the site's age and content relevance. By improving these factors, a website can increase its DA and potentially improve its search engine rankings.
It's important to note that Domain Authority is just one of many factors that contribute to search engine rankings, and it should be used as a comparative metric rather than an absolute measure of a site's quality. Keeping this in mind, improving a site's DA can improve its overall SEO performance and bring in more traffic and leads.