Domain Authority (DA) is a metric developed by Moz that predicts how well a website will rank on search engines. It is based on a 100-point scale, and the higher a website’s DA, the more likely it is to rank well on search engines. There are several ways to improve a website’s DA, including:

1. Building high-quality, authoritative backlinks: One of the most important factors in determining a website’s DA is the number and quality of links pointing to it from other websites.
2. Optimizing the website’s on-page factors: This includes things like using relevant and targeted keywords, having a clear and user-friendly design, and having fast loading speeds.
3. Promoting the website through social media and other online channels: This can help to drive traffic to the website and increase its visibility online.
4. Providing valuable and informative content: Websites that consistently provide valuable and informative content are more likely to attract backlinks and improve their DA.

It is important to note that attempting to manipulate a website’s DA through tactics such as buying links or participating in link schemes can actually harm the website’s DA and cause it to rank poorly on search engines. It is best to focus on building a strong, authoritative website through legitimate means.