What is DA and PA in SEO?
Search Engine Optimization

What is DA and PA in SEO?

12/26/2023 12:00 AM by SEO Admin in Seo

Do you know about the two crucial SEO metrics – page and domain authority? As we know that SEO is a sum of many key factors. It has a lot of elements that are official, and some measurements are unofficial.  Two of those measurements are Domain Authority and Page Authority. These two elements are short acronym DA and PA.

According to experts, DA and PA aren’t officially recognized by Google as a measurement. However, Google does not deny their importance either. That’s why these two factors are still very important in SEO.

But what exactly are DA and PA? What is their importance in SEO? Moreover, what is the difference between them? We will answer those questions and more in this article, so let’s get started.

What is DA?

Domain Authority or DA is the measurement unit used by SEO experts to comprehend the extent of a website’s relevancy in its category or industry. This is a search engine ranking score that was developed by Moz.

  • The number of backlinks pointing to the website.

  • Referring root domains in a website

  • The number of backlinks pointing to the website.

  • Quality of the links. (both inbound and outbound)

  • Site volume (how much content is contained in the site).

  • Age of domain (that is, when it first went live on Google, not when the domain name was first registered).

  • Amount of social signals.

  • Quality of overall site content.

  • And the quality/page-loading speed of the website.

  • Moz trust (Moz trust is usually computed by Moz and it grows with time).

The key to improving your site DA is to focus on improving the factors that influence the DA itself. Here are some of the scores that should help you understand whether a website is relevant or not:

As opposed to Domain Authority, Page Authority gives the quality and integrity of specific pages. It’s also a measurement tool that’s used to determine the likelihood of a website page getting ranked on search engine result pages.

As opposed to domain authority, Page authority checker is a tool to calculate the key website ranking and rating factors for just a single page or in other words just for a single URL of your website.

Page Authority or PA also scores from 1-100, and the higher the score, the better the chances of that page getting ranked in Google’s SERP. According to MOZ, PA is also a sum of various key factors

  • The contribution/relevancy of the backlink to the page’s content;       

  • The quality and reliability of links placed on that page;

  • And whether the page is up-to-date or not.

DA gives the quality of a website in overall measures and PA allows you to understand the likelihood of specific pages. A Google executive in 2015 tweeted that even though they do not recognize authority, the signals do pass on.

So, even though Page and Domain Authority aren’t a direct measurement of website ranking, they do play a part in the following:

  • Helping one understand how to rank higher on Google;

  • Improve the likelihood of Crawl Demand;

  • Understand whether they need to remove dead/zombie pages;

  • Comprehend the need to improve backlink quality;

  • And improve the overall quality of content on a website.

These are the factors that make DA and PA important factors in ranking on Google.

How To Check DA And PA?

Checking DA and PA is a straightforward process. Moz has separate tools for checking DA or PA scores. Whereas there are also tools by SEMrush, Majestic, and Ahrefs. However, they will all cost you something to use, and instead, it’s better to use Da Pa Checker offered by SanSEOTools.

  • So, once you have a website you need to check, simply enter the URL

  • Then press the Check Authority button to check the website’s PA and DA score

  • As you can notice, the Domain Authority of moz.com is 91, whereas the Page Authority score is 74. Hence, the likelihood of any new page from this website ending up on SERP is quite high.

Tips To Improve DA/PA

After checking the DA/PA of your website, here are some tips that can help you improve your website’s DA and PA:

1. Acquire High-Quality Backlinks

High-quality backlinks are the easiest and most straightforward way to ensure your website ranks higher in SERP. Backlinks are the key factor in ranking a website on SERP anyway. So, once you acquire high-quality links, it also improves your DA and PA scores simultaneously.

2. Writing Link-Worthy Content

Good-quality content and its importance cannot be understated for any SEO-related issues. That’s why it’s important that you don’t only create link-worthy websites but also write link-worthy content. So, once your website is linked to other domains, it automatically improves its ratings.

3. Remove Bad Or Broken Links

Bad or broken links are the enemy of your website anyway. They hinder your chances of getting ranked, and they also put Google’s crawlers off. So, removing them will not only improve the quality of specific pages on your website but also improve the DA and PA rating.

4. Improve Internal Linking

Improve internal linking. A website that’s well-connected is always easier for crawlers to index. So, when your website is well-joined together through Backlinking, it’ll improve its DA and PA score quite copiously.


These are some of the key factors that you need to understand about DA and PA in SEO.