Page Authority is scored on a 0-100 logarithmic scale. Meaning the higher the score, the more likely your page will rank well on search engines. Since it’s a logarithmic scale, you’ll see quicker progression at lower scores (20 or 30), and as you reach a higher score (70 or 80) it becomes more difficult.
To increase your Page Authority, you want to build high-quality links to your pages.Ideally, you’d want to build a large number of high-quality links to your site to increase your Page Authority.