Page Authority (PA) is a score developed by Moz that predicts how well a specific web page will rank on search engine result pages1 (SERPs). Page Authority scores range from one to 100, with higher scores corresponding to a greater ability to rank.
Key points about Page Authority:
Focuses on individual pages: Unlike Domain Authority, which evaluates the ranking strength of an entire domain, Page Authority focuses on the predictive ranking strength of a single web page.
Based on multiple factors: Page Authority is calculated by evaluating various factors, including:
The number of linking root domains to that specific page
The total number of links to that specific page
MozRank and MozTrust scores for that specific page
Uses a machine learning model: Moz uses a machine learning model to determine the algorithm that best correlates with rankings across search engine results pages.
Not a Google ranking factor: While Page Authority can be a useful metric for comparing individual pages and tracking their ranking strength over time, it's important to remember that it is not a direct ranking factor used by Google.
How to improve Page Authority:
Earn high-quality backlinks: Acquiring backlinks from reputable and relevant websites is crucial for improving Page Authority.
Optimize on-page elements: Optimizing factors like title tags, meta descriptions, header tags, and content relevance can positively influence Page Authority.
Create high-quality content: Publishing informative, engaging, and valuable content can attract more backlinks and improve user engagement, both of which can contribute to higher Page Authority.
Improve website structure: A well-organized website structure with clear navigation can help distribute link equity and improve Page Authority for individual pages.
Remove spammy links: Disavowing or removing low-quality or spammy backlinks can prevent negative impacts on Page Authority.
Tools to check Page Authority:
Moz Link Explorer: Moz's Link Explorer tool allows you to check the Page Authority of any URL.
MozBar: The MozBar is a free browser extension that displays Page Authority and other metrics for the pages you visit.
Third-party SEO tools: Many other SEO tools, such as Ahrefs and SEMrush, also provide metrics similar to Page Authority.
By focusing on improving the factors that influence Page Authority, you can increase the likelihood of your web pages ranking higher in search engine results pages.