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Domain Authority (or ‘DA’ for short) is a metric created by Moz that predicts how likely a website is to rank in search engine result pages. Usually, websites with a DA of 50+ are considered to be authoritative. However, the ‘average’ domain authority can differ from industry to industry. While the maximum DA score is 100, it is very difficult to reach it. Only the websites that are extremely popular (such as LinkedIn and YouTube) are able to get a score close to 100.