Issue with Google Index checker - one of our vendors that checks whether the website is indexed by Google is facing downtime. Due to this the domains are not being checked for indexation. As soon as they fix this, we will remove the message. Sorry about this.
Moz is an independent company that comes out with metrics for a large number of websites. The various metrics are given below
MozRank: 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.
MozRank (www): This is the MozRank for the www subdomain
Combined MozRank: This is the MozRank of all the pages on the root domain combined into a single value
Combined MozRank (www): This is the MozRank of all the pages on the www subdomain combined into a single value
MozTrust: MozTrust is Moz's global link trust score, that measures the value of links recieved from trustworthy websites. It goes from 1 to 10.
MozTrust (www): This is the MozTrust for the www subdomain
Domain Authority: 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.
Page Authority: 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.
Total Domains: This is the total number of domains with back links to the root domain
Total Domains (www): This is the total number of domains with back links to the www subdomain
Total Back Links: This is the total number of back links that Moz has found.
Total Back Links (E): This is the total number of back links which pass equity to the root domain.
Total Back Links to Sub Domain(E): This is the total number of back links which pass equity to the www subdomain.