Domain authority
 

On the internet,the domain is simply a part of the network address and acts as a descriptor for websites.It includes email address,website address and address of internet protocols such a SSH,IRC and FTP.

Domain Authority is Moz's best estimate of how well a domain will perform in search. Learn how Domain Authority is scored and why it's important to SEO.

Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how well a website will rank on search engine result pages (SERPs). ... Domain Authority is calculated by evaluating multiple factors, including linking root domains and number of total links, into a single DA score.

Domain Authority will give you a better idea about the domain that you going to submit your site there or building a link.

Domain authority is the measure of strength and popularity of your domain in search engines. It is measured by Moz and your domain is ranked between 0 to100 depending on the popularity and trust. DA can be improved by good content update and also by building backlinks from other relevant domains.

What is Domain Authority?
 

Domain Authority is a measure of how well a website is likely to perform in search engine results.Domain authority is based on three factors: Age, Popularity, and Size.

Domain Authority is a measure of how well a website is perform in search engine result page. This matric is given by moz used to analysis of website performance.

Domain Authority is now a major ranking factor in SEO.