Moz is an independent company that comes out with metrics for a large number of websites. The various metrics are given below<br/> <b>MozRank</b>: MozRank is akin to Page Rank. It's a link popularity score - which goes from 1 to 10. Domains/Pages earn MozRank based on the quality and number of other pages that link to them. An average MozRank is about 3. <br/> <b>MozRank (www)</b>: This is the MozRank for the www subdomain<br/> <b>Combined MozRank</b>: This is the MozRank of all the pages on the root domain combined into a single value<br/> <b>Combined MozRank (www)</b>: This is the MozRank of all the pages on the www subdomain combined into a single value<br/> <b>MozTrust</b>: MozTrust is Moz's global link trust score, that measures the value of links recieved from trustworthy websites. It goes from 1 to 10.<br/> <b>MozTrust (www)</b>: This is the MozTrust for the www subdomain<br/> <b>Domain Authority</b>: DA shows how well a domain will perform in search engine rankings. It can be used to compare one domain to another and is therefore a better metric than MozRank when valuing domains. The metric is scored from 0 to 100. Because DA is difficult to directly influence it is hard (not impossible) for scammers to fake a high DA.<br/> <b>Page Authority</b>: PA shows how well a given webpage will perform in search engine rankings. Since PA predicts the probability for a single page, it is not as useful as DA when it comes to expired domains. Like DA this metric is scored from 0 to 100.<br/> <b>Total Domains</b>: This is the total number of domains with back links to the root domain<br/> <b>Total Domains (www)</b>: This is the total number of domains with back links to the www subdomain<br/> <b>Total Back Links</b>: This is the total number of back links that Moz has found.<br/> <b>Total Back Links (E)</b>: This is the total number of back links which pass equity to the root domain.<br/> <b>Total Back Links to Sub Domain(E)</b>: This is the total number of back links which pass equity to the www subdomain.<br/>