Page Authority (PA) is a score that predicts how well a specific page on your website will rank on search engines like Google. Developed by SEO software company Moz, this score ranges from 1 to 100. A higher score suggests a greater ability to rank.
This guide will walk you through what Page Authority is, how it differs from Domain Authority, why it is important for your business in Singapore, and exactly how you can improve it to boost your online visibility.
Understanding Page Authority (PA)
Navigating the world of Search Engine Optimisation (SEO) can feel like learning a new language. You might hear terms like “backlinks,” “keywords,” and “authority” used often. One of the most important concepts to grasp is Page Authority. It is a key indicator of your page’s strength and can help you create a more effective SEO strategy.
What Is Page Authority?
Page Authority is a score that predicts the ranking strength of a single page. Think of your website as a school report. Each page—your homepage, a blog post, a product page—has its own individual grade. That grade is its Page Authority. A page with a higher PA is more likely to rank higher in search engine results pages (SERPs) than a page with a lower PA.
This metric was created by Moz, one of the most respected companies in the SEO industry. This makes it a reliable and widely used indicator for digital marketing professionals. It helps us understand the competitive landscape and see how a specific page stacks up against its rivals for a particular keyword.
How is the Page Authority Score Calculated?
The exact formula for Page Authority is complex and is powered by a machine-learning algorithm. However, its calculation is based almost entirely on your page’s backlink profile. A backlink is a link from another website to your page. In simple terms, Google views backlinks as votes of confidence. The more high-quality votes a page has, the more authoritative it seems.
Moz’s algorithm looks at dozens of factors, but the most important ones are the number of links pointing to your page and the quality of those linking sites. Getting a link from a trusted, established website like The Straits Times is far more valuable than getting dozens of links from unknown, low-quality blogs. Essentially, the calculation focuses on the idea that not all links are created equal.
It is crucial to remember that Page Authority is a predictive metric developed by Moz. It is not a metric used by Google in its own ranking algorithms. However, because it is based on factors that Google does care deeply about (like backlinks), it is an excellent tool for gauging a page’s potential to rank.
What Is A Good Page Authority Score?
This is a common question, but the answer is that a “good” PA score is always relative. There is no magic number that means your page will rank number one. Instead, you should use Page Authority as a comparative metric.
A brand-new page on a new website will always start with a Page Authority of 1. In contrast, a page on Wikipedia or a major news website might have a PA of over 90. Your goal is not necessarily to reach 90. Your goal is to have a PA score that is similar to, or higher than, the other pages that are currently ranking on the first page of Google for your target keyword.
For example, if you are a local florist in Singapore and the top-ranking pages for “rose bouquets Singapore” all have a PA between 20 and 30, then aiming for a score in that range is a good starting point. It is all about context and competition.
Page Authority vs. Domain Authority: What’s the Difference?

You will almost always hear Page Authority mentioned alongside another term: Domain Authority (DA). They sound similar, but they measure two very different things. Understanding the distinction is vital for developing a smart SEO plan.
Defining Domain Authority (DA)
While Page Authority measures the strength of a single page, Domain Authority measures the predictive ranking strength of your entire website. Going back to our school report analogy, if PA is the grade for a single subject like Maths, then DA is your overall average grade for all subjects combined. It gives you a general idea of your website’s total authority and reputation online.
Key Distinctions You Need to Know
The main difference is the scope. PA is narrow and specific to one URL, while DA is broad and applies to your whole domain and all of its pages. A high DA can give a new page on your site a good starting boost, as some of that overall authority is passed on. However, a single page with a high PA does not automatically mean the entire website has a high DA. You can have a very popular blog post with a high PA on a website that has a relatively modest DA.
Which Metric is More Important for Your SEO?
Both metrics are important because they serve different strategic purposes. You should not focus on one and ignore the other. Domain Authority is useful for understanding the overall health and competitiveness of your website. It helps you see how you compare to your main competitors in the Singapore market at a high level.
Page Authority, on the other hand, is more tactical. It is incredibly useful when you are trying to rank a specific page for a specific keyword. By analysing the PA of the top-ranking pages, you can determine how much effort, particularly in link building, will be needed for your page to compete. A balanced SEO strategy works on building both overall domain credibility and the specific authority of your most important pages.
Why Page Authority Matters for Your Website
Although it is not a direct Google ranking factor, paying attention to Page Authority is a non-negotiable part of a modern SEO strategy. It provides invaluable insights that can shape your entire approach to getting more traffic from search engines.
Page Authority as a Predictive Ranking Tool
The primary value of PA is its ability to predict success. If you are targeting a competitive keyword, you can use a PA checker to see the scores of the pages already on page one of Google. If their scores are all above 40 and your page has a PA of 10, you know that ranking will be an uphill battle. This information allows you to be more strategic. You can either choose to target a less competitive keyword or dedicate serious resources to building up your page’s authority.
Guiding Your Link Building Strategy
Since PA is almost entirely based on backlinks, it is the perfect metric for guiding your link-building campaigns. By regularly checking the PA of your key money pages, like your service or product pages, you can see where you need to focus your efforts.
If an important page has a low PA, it is a clear signal that it needs more high-quality backlinks to improve its ranking potential. This helps you prioritise your resources and build links to the pages that will have the biggest impact on your business.
Is Page Authority a Direct Google Ranking Factor?
Let’s be perfectly clear on this point: Google does not use Page Authority in its algorithm. The engineers at Google have never seen your Moz PA score. However, PA is based on data that strongly correlates with what Google values.
Google’s algorithm is heavily influenced by the quantity and quality of links pointing to a page. Because PA is a measure of this exact factor, improving your PA almost always leads to better rankings over time. Think of it as a helpful third-party indicator, not a direct cause of ranking success.
How to Increase Your Page Authority: A Step-by-Step Guide

Improving your Page Authority is not a quick fix; it is a long-term strategy that requires patience and consistent effort. It all comes down to making your page a valuable and trustworthy resource that other websites want to reference.
Step 1: Ensure Your On-Page SEO is Perfect
Before you even think about building links from other sites, you need to make sure the page itself is in perfect shape. A page with poor-quality content will never attract good links.
- Create Valuable Content: Your content must be original, well-written, and genuinely helpful to your target audience. It should fully answer the question that a user is searching for.
- Optimise Your Page Elements: Ensure your page’s title tag, meta description, and headers (like H1 and H2 tags) are clear, descriptive, and include your main keyword.
- Focus on User Experience: The page should load quickly, be easy to navigate, and look great on mobile devices.
- Use Internal Links: Link from your page to other relevant pages on your own website. This helps both users and search engines find your other content.
Step 2: Build High-Quality Backlinks
This is the most direct way to increase your Page Authority. A high-quality backlink comes from a website that is relevant to your industry and is trusted and authoritative itself.
- Guest Blogging: Write a helpful article for another reputable website or blog in your niche. For example, a Singaporean interior designer could write for a local property blog. In return, you get to include a link back to your page.
- Digital PR: Create something newsworthy, like a study on local consumer trends or a compelling infographic. Pitch this to journalists and bloggers in Singapore who might write about it and link back to you.
- Resource Link Building: If you have created an ultimate guide or a comprehensive resource, find other websites that have lists of resources and ask them to consider adding a link to your page.
Step 3: Earn Natural Links Through Exceptional Content
The best type of link is one you do not have to ask for. This happens when you create content that is so valuable, interesting, or unique that other people discover it and choose to link to it on their own. This is known as “link earning.” Content like original research, in-depth case studies, and free online tools are excellent at attracting these natural links, which are a powerful signal of authority.
Step 4: Conduct an Internal Linking Audit
The pages on your website do not exist in isolation. You can pass authority from your stronger pages to your weaker ones through internal links. This is often called passing “link equity.”
- Identify Your Power Pages: Use a PA checker to find the pages on your website that already have the highest Page Authority.
- Find Linking Opportunities: Look for relevant places on those high-PA pages where you can add a link to the page you want to boost.
- Use Descriptive Anchor Text: When you link, use anchor text (the clickable words) that describes the page you are linking to. For example, use “learn about our SEO services” instead of “click here.”
Step 5: Remove Harmful or Toxic Backlinks
Just as good links can help you, bad links can sometimes hurt you. These are links from spammy, low-quality, or irrelevant websites. You should periodically review your backlink profile using tools like Google Search Console.
If you find harmful links that you cannot get removed by contacting the other website, Google provides a Disavow Tool. However, this is an advanced feature and should be used with extreme caution. For most beginners, focusing on building good links is a much better use of time.
Essential Tools for Checking Page Authority
You cannot improve what you do not measure. Fortunately, there are several excellent tools available to help you check your Page Authority and that of your competitors.
- Moz Link Explorer: This is the original and most definitive tool for checking both Page Authority and Domain Authority. Moz offers a limited number of free checks each month, which is perfect for beginners.
- Ahrefs: Ahrefs is another top-tier SEO tool. They do not use the term “Page Authority,” but have a very similar metric called “URL Rating” (UR). It is calculated differently but serves the same purpose of measuring a page’s backlink strength.
- SEMrush: SEMrush also has its own version called the “Page Authority Score.” It is integrated into their massive suite of SEO tools and provides another data point for analysing a page’s strength.
- Free Online PA Checkers: There are many free websites that allow you to check the PA of a page. Most of these use Moz’s API to get their data, making them a good option for quick, occasional checks.
Conclusion On Page Authority
In summary, Page Authority is a Moz score that predicts a single page’s ability to rank in search results. It is a comparative metric, meaning its value comes from comparing it to your competitors. While it is not a metric Google uses directly, it is a vital indicator because it is based on backlinks, which are a core ranking factor.
Improving your PA is a long-term strategy that hinges on creating excellent content, earning high-quality backlinks, and smart internal linking. By focusing on building real authority, you will see your PA, and your rankings, grow over time.
If you have any questions about improving your website’s authority, please feel free to contact us. To connect with a network of dedicated SEO professionals, visit BestSEO Singapore.
Frequently Asked Questions About Page Authority
What Is a Good Score for Page Authority?
There is no absolute “good” score for Page Authority. It is a relative metric, meaning its value depends on the competition. A good score is one that is similar to or higher than the pages that are currently ranking on the first page of Google for your target keyword. You should analyse your competitors’ PA scores to set a realistic target for your own page.
How Is Page Authority Calculated?
Page Authority is calculated by Moz using a complex machine learning algorithm. It primarily analyses the backlink profile of a specific page, considering factors like the number of unique websites linking to the page (linking root domains) and the authority of those linking websites. It combines dozens of factors into a single score on a 100-point logarithmic scale.
What Is the Difference Between Domain Authority and Page Authority?
The main difference is the scope. Page Authority (PA) predicts the ranking strength of a single, individual page. Domain Authority (DA) predicts the ranking strength of an entire website or domain. Think of PA as the strength of one chapter in a book, while DA is the strength of the entire book.
How Do You Increase Your Page Authority?
You can increase Page Authority primarily by acquiring high-quality backlinks from other relevant and authoritative websites. Other key strategies include creating exceptional, link-worthy content, ensuring your on-page SEO is flawless, and strategically using internal links to pass authority from your stronger pages to the page you want to boost.
Is Page Authority a Ranking Factor?
No, Page Authority is not a direct ranking factor used by Google. It is a third-party metric created by Moz to predict ranking potential. However, it is based on factors that Google does consider, such as the quantity and quality of backlinks. Therefore, there is a strong correlation between a high PA score and high rankings.
What Is More Important, Page Authority or Domain Authority?
Both are important for different aspects of SEO strategy. Domain Authority is important for understanding the overall strength and health of your entire website. Page Authority is more important for tactical analysis when you are trying to rank a specific page for a specific keyword. A comprehensive SEO strategy should aim to improve both.