What Is Page Authority? (Definition of PA In SEO) – How To Learn SEO

In this article, we will answer the question, “What is Page Authority?”

Which is also known as PA in SEO (Search Engine Optimization).

But we will go beyond just the definition of what page authority means. You will also understand what makes a good page authority for your website as well as the various metrics that affect the PA score.

Finally, you’ll find a list of suggestions on how to improve your website’s PA metrics so that you can increase your web page ratings to achieve higher rankings in search engines like Google, Yahoo, and Bing.

What is page authority?

Page authority is a search engine ranking score that estimates how well a web page will rank in the Search Engine Result Page (SERP). Page Authority (or PA) was developed by Moz and scores range from 1 to 100, with higher PA scores indicating a better chance of ranking.

What is a good page authority?

A good Page Authority score is between 60 and 80 on the PA scale. Good page authority corresponds to a web page that is able to compete in the SERPs for moderately competitive keywords. The PA measures more than 40 ranking factors and is based on a 100-point logarithmic scale.

Is PA Important for SEO?

Page authority is important for SEO because it closely represents the ranking ability of a web page in SERPs. The higher the PA score, the more powerful and reliable the web page is to Google for ranking purposes.

However, according to Moz, it’s best to use PA scores as a comparative SEO metric when trying to determine the way page authority is calculated when trying to determine which SERPs Which web page can have better ranking ability.

It is also important to understand that page authority does not take into account on-page SEO elements such as keyword usage or content optimization. PA is only measured by off-page SEO factors such as the number and quality of incoming links.

Because of the comparative nature of PA, and the fact that scores will fluctuate as the data is being fed into the algorithm, Moz says that when you’re comparing a set of pages against each other. PA doesn’t have to have a good or bad score. SEO Ranking. For example, a web page with a low PA score page may outnumber a URL with a high PA score. Therefore, it is best to use page authority as a relative metric, along with other important elements such as the domain name and quality of on-page SEO optimization.

What affects page authorization?

Page authority is calculated in the same way as domain authority but at the individual page level. The data for this calculation comes from the Mozscape Web Index which includes over 40 off-site SEO ranking factors.

Linking url

The total number of linking URLs will directly affect the Page Authority score.

Add root domain

Linking root domain refers to the number of unique domains (or websites) that link to your web page. For example, if you receive three linking URLs from the same website under the same domain, they will count as a single root domain. Page authority is affected by the total number of linking root domains.

Add subdomain

A subdomain is an additional part of your website’s URL that comes before the domain name and extension. Google treats subdomains as separate entities. Therefore, the Page Authority score is also affected by the number of subdomains that link to a specific URL on your website.

Linking pages

The quality of external pages that send links to your web page is also included in the PA score. Linking pages with high page authority will help improve the target URL PA score.

Dofollow link

Dofollow links transfer the highest PageRank authority from the parent website to the target site through the passage of link equity. The more dofollow links your web page gets, the higher will be your page authority score.

Nofollow Links

Nofollow links are backlinks that are tagged with the nofollow attribute in HTML, and therefore, do not officially count as an editorial vote. In the past, not every nofollow link passed any PageRank value to SEO; However, Google’s algorithm has evolved to use the nofollow tag as a sign and not a directive. Therefore, some nofollow links will pass the link equity to the target web page if Google determines that it should pass the PageRank value.

301s and 302s

A 301 redirect indicates that a web page has moved permanently to a new location, while a 302 redirect means that the change is temporary. The quantity and quality of these redirects also affect page authority metrics.

New vs Old Links

The number of new versus old links that appear in a web page affects the page authority score. A URL that is receiving a steady flow of new links indicates that it is a high-quality page that is still relevant to searchers, while a web page containing only old backlinks may mean that the page No longer worth showing to users on Google.


Top-level domains or TLDs are at the top of the domain name system hierarchy. TLDs can be country or industry-specific and include domain extensions such as .com, .edu, .gov, .org, .uk, .ca, etc. The diversity of the TLD is taken into account by the page authority algorithm.

Workspace name

Next to the top-level domain extension is the actual domain name for the website. For example, this is the part of the URL that appears before .com or .org. The domain name is included in the PA score of a target web page to add to the root domain.

Branded Domain Mention

The number of branded domains mentioned without hyperlinks is a PA scoring metric. If Moz’s algorithm detects a high number of branded domain mentions in product reviews, blog posts, and articles, your website’s Page Authority metric can increase in value.

Spam score

Moz has a comparative metric for measuring spam-related properties for websites. A score of 61-100% is considered a high spam score and can affect your Page Authority score across the site. Spam Score is used to predict that your website is being penalized by Google for spammy SEO practices.


MozRank is a widely used KPI that measures the backlink popularity of a website. It uses the same methodology as Google PageRank and is scored from 0 to 10. A score of 7 and higher indicates higher authority, which can help increase the page authority metrics for your web pages.


MozTrust serves as a link trust score rather than a link popularity metric. If you get backlinks from other higher authority web pages, your MozTrust score will increase, and so will your PA score.

How to increase page authority?

Increase domain authority

PA has a positive relationship with the Domain Authority (DA). Therefore, you should work to increase the DA score of your website by getting high-quality backlinks from other reputed and reliable websites.

Get more linking root domains

The more linking root domains you have on your website, the more important it is for search engine algorithms to have a specific URL. A web page that receives a lot of links coming from different domains shows that the URL has wide link popularity. All other things being equal, having 10 backlinks from 10 different linking root domains is better than having 10 backlinks from one domain.

Increase the number of high authority links

Your website’s Page Authority score largely depends on the number of high-authority backlinks each URL receives. Therefore, to increase the Page Authority score, you want to increase the number of quality pages that link to your content.

Get more dofollow links

Dofollow links carry the highest SEO value for PageRank. So the more dofollow backlinks you can get, the higher will be the page authority score for the target page.

Get less spammy links

Getting backlinks from spammy, questionable sources can increase your spam score and decrease your page authority metrics. Such toxic backlinks can also get your website penalized by Google. Therefore, you should actively monitor your website’s spam score and use Google’s rejection tool to remove spammy links from your website’s backlink profile. Check out this other guide on how to remove bad backlinks for step-by-step instructions on this process.

Page Authority (PA) in SEO Summary

I hope you enjoyed this guide answering the question of what is page authority.

As you found, page authority means a score between 1 and 100 and is often related to how well a web page will rank in search engine result pages compared to a competitor’s URL. Therefore, it is important to focus on PA in SEO to improve search engine visibility for the content most important to your business in order to get more organic traffic from Google, Yahoo and Bing.

I am the creator of SEO Chatter. I have been fascinated by SEO since 2005 and have spent most of my waking hours consuming SEO content from top professionals in this field. My goal is to share the best tips and news about search engine optimization so that you can drive more traffic to your website.

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