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What is Page Authority Calculator?
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Think of your website as a neighborhood and each individual page as a house. While Domain Authority tells you how popular the whole neighborhood is, Page Authority (PA) is all about one specific house. Created by the SEO experts at Moz, Page Authority is a score from 1 to 100 that predicts how likely a single, specific webpage is to show up on the first page of Google. If you have written a killer recipe for sourdough bread or designed a gorgeous landing page for your local pet grooming business, PA is the metric that tells you how much muscle that exact page has in the search world. Why does this matter to you over your morning coffee? Because you don't sell products or get newsletter sign-ups on your homepage alone. You do it on specific blog posts, product pages, and contact forms. By knowing the PA of your most important pages, you can see exactly which ones are ready to climb to the top of Google and which ones need a little extra love. It is like checking the tire pressure on individual wheels of your car instead of just hoping the whole vehicle runs fine. It is important to know that PA is logarithmic. That is a fancy math word, but think of it like training for a marathon. Going from a 10 to a 20 is like jogging around the block—pretty easy with a little effort. But going from a 70 to an 80 is like shaving five minutes off an elite runner's marathon time; it takes serious work and high-quality backlinks. Our calculator helps you estimate how much link equity (the "SEO juice" passed from one page to another) you need to bridge the gap and outrank your rivals.
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Formulė
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Page Authority (PA) is a proprietary, logarithmic 1-100 score calculated by Moz. It is mathematically modeled as: PA ≈ Logarithmic_Scale(External Link Quality & Quantity + Internal Link Equity + Domain Authority Baseline - Spam Score). To estimate how link equity flows to your page, use: Link Equity Flow = (PA of Linking Page / Total Outbound Links on that Page) × Follow Status (1 for dofollow, 0 for nofollow).Variable Legend
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| Symbol | Vardas | Vienetas | Aprašymas |
|---|---|---|---|
| PA Score | Moz Page Authority | — | A score from 1 to 100 predicting how well this specific URL will rank on search engines. |
| External Links | Number and quality | — | The total count and trust level of other websites linking directly to your page. |
| Internal Links | Volume and PA | — | The number of links pointing to this page from other pages inside your own website. |
| Domain Authority | The DA | — | Your website's overall authority score, which acts as a starting foundation for any new page you publish. |
| CTR by Position | Click | — | The percentage of searchers who click on your link based on where you rank on Google's search results page. |
How to Page Authority Calculator
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- 1Grab your page's current Moz Page Authority score and note down the competition you're up against.
- 2Look at the quality and quantity of external websites linking directly to your specific page.
- 3Check your internal links—how many other pages on your own site are pointing to this specific URL?
- 4Factor in your site's overall Domain Authority, which acts as a natural baseline floor for your page.
- 5Calculate the estimated link equity flow to see how much power is actually reaching the page.
- 6Compare your score to competitors in your niche to see if you need to build more links or target easier search terms.
Worked Examples
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By using our calculator to estimate the value of boosting a specific page's authority, you can see exactly how a small jump in search rankings translates into real dollars in your cash register. It proves that link building isn't just a vanity project—it's a high-return investment.
This scenario shows how you don't always need to buy expensive backlinks to rank higher. By strategically passing link juice from your existing high-authority pages to your product page, you can climb search rankings for free.
Before you spend hours writing content, comparing your estimated PA to your competitors' actual PA helps you pick battles you can actually win, ensuring your hard work pays off quickly.
This calculation helps you treat link building like a business. Instead of guessing if a guest post is worth the money, you can run the numbers to see if the traffic boost will cover your costs and turn a profit.
Real-World Applications
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Pinpointing exactly which product pages need a boost of internal links to start ranking on page one.
Sizing up the competition before writing a blog post to make sure you aren't fighting an unwinnable battle against giant authority sites.
Evaluating guest posting opportunities to see if a link from a specific publisher is actually worth your time and effort.
Tracking the progress of a link-building campaign to prove to your team (or clients) that your SEO efforts are paying off.
Diagnosing why a beautifully written article is stuck on page three of Google despite having great content.
Special Cases
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Fresh-out-of-the-oven pages start at PA 1
When you hit 'publish' on a brand new page, it starts with a clean slate of PA 1, even if your overall domain is highly trusted. Don't be discouraged! This just means you need to actively build internal links from your older, stronger pages and do some outreach to get external links pointing directly to this new URL to get the ball rolling.
Moving pages with a 301 redirect
If you move a page to a new URL and set up a permanent 301 redirect, you won't lose all your hard-earned authority. Usually, about 85% to 95% of the original Page Authority successfully flows through the redirect to the new page. Just keep in mind that a tiny bit of 'link juice' is lost in the transition, like pouring water from one glass to another.
Multi-page articles and product lists (Page 2+)
If you have a blog or shop category that spans multiple pages (like page 2, page 3, etc.), avoid building external links directly to those deep pages. Instead, focus all your link-building efforts on the main page (Page 1) or use canonical tags to tell search engines to concentrate all the ranking power on your primary landing page.
Understanding Your Page Authority Score
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| PA Range | How Strong Is It? | Typical Number of Links | What the Competition Looks Like |
|---|---|---|---|
| 1 - 10 | Just Starting Out | 0 - 5 links | Very easy to beat with basic content |
| 11 - 20 | Getting Noticed | 5 - 30 links | Great for small, local business keywords |
| 21 - 35 | Solid Footing | 30 - 200 links | Normal competition for niche blogs |
| 36 - 50 | Strong Competitor | 200 - 2,000 links | Competitive markets; requires active SEO |
| 51 - 65 | Heavy Hitter | 2,000 - 20,000 links | Tough competition against established brands |
| 66 - 80 | Industry Leader | 20,000+ top-tier links | Very hard to beat; dominated by giant sites |
| 81 - 100 | Internet Royalty | Millions of links | Wikipedia, YouTube, and Amazon level |
Frequently Asked Questions
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What is Page Authority, and why should I care about it?
Think of Page Authority (PA) as a score from 1 to 100 that measures how much 'ranking muscle' an individual webpage has. Unlike Domain Authority, which looks at your entire website, PA focuses on just one specific URL. It helps you understand how likely a particular blog post or product page is to show up on the first page of Google. Knowing this score lets you focus your energy on boosting the pages that will actually bring in customers.
Is Page Authority an official ranking factor used by Google?
No, Google does not use Moz's Page Authority score to rank websites. PA is a third-party prediction tool created to mimic Google's complex algorithms as closely as possible. While Google uses hundreds of secret signals to rank pages, PA is simply our best guess at how strong your page is based on its link profile. It is an incredibly helpful guide, but Google itself has no idea what your PA score is.
How do I use Page Authority in my SEO strategy?
You can use PA to find quick wins! Look for pages on your site that have a PA score of 15 to 25 and are sitting on page two of Google. By building just a few high-quality internal or external links to those specific pages, you can easily push them onto page one, bringing in a wave of fresh traffic with very little effort.
What are typical Page Authority score ranges for different types of websites?
Newer, smaller sites or local businesses usually have pages in the 10 to 20 range. Popular blogs and medium-sized e-commerce sites often see pages sitting comfortably between 30 and 50. Only massive, globally recognized websites like Wikipedia, major news outlets, or tech giants reach scores above 80.
Can you provide a real-world example of how Page Authority has been used to improve search engine rankings?
Imagine an online boutique that sells handmade leather bags. They have a product page with a PA of 18 ranking at #11 on Google. By writing a stellar blog post about leather care, which naturally earns links from fashion bloggers, and then linking that blog post directly to their product page, the product page's PA jumps to 28. This pushes the page to #4 on Google, doubling their daily sales!
Common Mistakes to Avoid
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- !Mistaking PA for an official Google metric—remember, Google has its own secret ranking recipe, and PA is just our best estimate.
- !Comparing PA scores from different tools (like Moz PA vs. Ahrefs UR) because each tool uses its own index and scoring math.
- !Chasing a high PA score while ignoring content quality, leading to high bounce rates and poor rankings despite strong link power.
- !Dumping all your link-building efforts into your homepage while leaving your individual product and blog pages starving for direct link love.
- !Forgetting about internal links—missing out on the free ranking boost you can get by linking your own pages together.
Pro Tip
Before spending money on expensive external backlinks, do a quick audit of your own site. Find your top-performing blog posts and add 2 or 3 natural internal links pointing directly to the product pages you want to rank. It's a free, instant way to share your existing Page Authority!
Did you know?
Did you know that Page Authority is built on a logarithmic scale similar to how we measure earthquakes? This means a page with a PA of 40 isn't just twice as strong as a page with a PA of 20—it's actually hundreds of times more powerful! That's why ranking on the first page of Google for major terms feels like moving mountains.
Regional Guides
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References
- ›Moz — Page Authority Definition and Methodology
- ›Moz — Page Authority vs Domain Authority
- ›Ahrefs — URL Rating Documentation
- ›Search Engine Journal — How Page Authority Affects Rankings
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