By Creating high quality backlink, domain authority will definitely increase.

Build Quality Back Links from High Authority websites.

To building more back links to your website we get domain authority..

Domain Authority
 

Domain authority is a measure of the power of a domain name and is one of many search engine ranking factors. Domain authority is based on three factors: Age, Popularity, and Size.

Domain authority is the measure of trust and popularity of your domain in search engines. It can be improved by good content update and also by building backlinks from other high authority webpages. It is measured by Moz.

Domain authority is a measure of the power of a domain name and is one of many search engine ranking factors. Domain authority is based on three factors: Age, Popularity, and Size.
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To calculate Domain Authority, over 40 signals are taken into consideration.
Websites that rank higher on search engines tend to have a high DA.
High Domain Authority -> high search engine rankings -> more traffic.
Domain Authority doesn’t increase overnight.

Domain authority are calculated based on the age of the domain,how many quality links point out the site these are the important factors to improve the domain authority.

Okay now, so Domain authority can be improved by writing good content and building quality backlinks....noted!

build backlinks on high quality site on build it in high quantity..

Domain Authority is most affected by the on page quality of your website content. Focus on making high quality web content for your pages.

Domain Authority depends on your backlink, content, traffic of your site. so start improving these this will automatically increase your DA.

Building good quality links is the key to doing it.

Domain authority is the measure of trust and popularity of your domain in search engines. It can be improved by good content update and also by building backlinks from other high authority webpages. It is measured by Moz.

Thanks for sharing good information for us...