How to Increase Domain Authority..?

there are many ways to increase DA. here are some,
1. Publish quality content
2. Do On-Page SEO
3. Internal Linking
4. Generate High-Quality Links For Your Site
5. Disavow Bad Links

Optimize Your On-Page Content
Create Linkable Content
Improve Your Internal Linking Structure
Make Sure That Your Website Is Mobile-Friendly
Increase The Loading Speed Of Your Webpages
Promote Your Content Via Social Media

Methods to increase domain authority:
Optimize on-page content
Choose a good domain name
Internal linking
Mobile-friendly website
Share content on social media sites.

There aren't any shortcuts for this task. Just focus on your backlinks and SEO. Rest depends on your domain age.

Considered to be one of the most influential SEO factors, domain authority is a key performance metric developed by Moz, which rates any website on a 1-100 scale.

You will have to follow below steps to increase the domain authority
1. Choose a good domain name
2. Publish quality content
3. Do on page SEO
4. Proper internal linking
5. Improve your internal linking structure
6. Remove bad links
7. Websites should be mobile friendly
8. Increase the loading speed of your web page

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.