A new metric, called Brand Authority, is now available in the Moz Pro SEO toolset and the Moz API, the company announced today. Moz’s new Brand Authority metric can be found in Domain Overview. Brand Authority is included at the current Moz Pro and Moz API pricing. Brand Authority to help customers understand their relationship to their competition.”Brand Authority vs. other brand score metrics. In addition to the new metric, Moz revealed a list of 500 sites with the most Brand Authority.