Quality and popularity of a website depends on Page Rank and Alexa Rank, But what is the role of Domain Authority and Page Authority? How they are determined?
You have that the wrong way round. PageRank and Alexa Rank are metrics used to assess/predict the popularity and quality of a page. (See my answer to your other topic for more information.)
In what? If you mean in search engine ranking, then they have no role. They are metrics created and used by moz.com to estimate how well a domain or page might perform in search results. (As a page’s performance might differ quite widely for different search terms, it’s hard to see how they can be any real guide.)
The link for Domain Authority seems to be broken; I’m only seeing a blank page. https://moz.com/learn/seo/domain-authority
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Larry Page has stated a number of times that the algorithm named after him is no longer of any significance.
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Domain Authority and Page Authority will give you better idea about the domain or page you going to submit your site there or building a link. In this way you could to know how good the site is? And for checking PA/DA moz dot com is much better.
Domain authority means domain age that is from which year or month the domain has been bought.
Check with online tools like smallseotools.com.
Sorry, but no, it doesn’t.
Domain Authority is a score (on a 100-point scale) developed by Moz that predicts how well a website will rank on search engines. Use Domain Authority when comparing one site to another or tracking the “strength” of your website over time. We calculate this metric by combining all of our other link metrics—linking root domains, number of total links, MozRank, MozTrust, etc.—into a single score.
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