Domain Authority and Page Authority, both are scores developed by Moz for the SEO improvements. DA stands for Domain Authority whereas PA stands for Page Authority?
What is Domain Authority?
Generally speaking, sites with a very large number of high-quality external links (such as Wikipedia or Google) are at the top end of the Domain Authority scale, whereas small businesses and websites with fewer inbound links may have a much lower DA score. Brand new websites will always start with a Domain Authority score of one.
Because of how Domain Authority is calculated (see "Technical definition of Domain Authority" below), it's best used as a comparative metric (rather than an absolute, concrete score) when doing research in the search results and determining which sites may have more powerful/important link profiles than others. Because it's a comparative tool, there isn't necessarily a "good" or "bad" Domain Authority score.
What is Page Authority?
Page authority is a metric, developed by SEOMoz, to predict the ability for a specific page to rank in search engines. Page authority uses a 0 to 100 logarithmic scale. A high Page authority score means your page has the potential to rank well in search engine results.
Domain Authority vs. Page Authority
Whereas Domain Authority measures the predictive ranking strength of entire domains or subdomains, Page Authority measures the strength of individual pages.
Let Share some key fact about DA, from that you are better understand Domain Authority:
Domain authority is based on a lot of factors. Primarily, however, these are link profile factors such as how many backward links are pointing to your website and how authoritative those sites are.
It is very difficult to gain a DA number of 100. Sites like Facebook and Google have it, so don’t be disappointed if you never hit 100.
DA is difficult to influence directly. You can’t change your DA score like you can change your meta tags.
You can do to improve your DA:
Ensure that your technical SEO is in place
Create lots of linkable content
Develop strong internal linking
Regularly remove toxic backlinks
Be patient
After Doing this things you will definitely get the best result .
I hope my answer is helpful for you.
Thank you.
