Domain Authority (DA) is a search engine ranking metric developed by Moz that predicts how well a website is likely to rank on search engine result pages. Scored on a scale from 1 to 100, higher scores indicate a stronger ability to rank. Domain Authority is calculated based on multiple factors, including the number and quality of backlinks, website structure, and overall SEO performance. While it is not a direct ranking factor used by Google, it serves as a valuable benchmark for comparing websites and guiding SEO strategies to improve online visibility.