Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Could be the PA greater than the DA?
-
Hello users MOZ:
I have a question about page and domain authority. It is OK that sometimes PA is greater than the DA? I think that's not right, but it happens in some domains, for example in the attached image. -
So glad I could help!
-
Thank you very much for your reply, I really clarified
-
Eric and Andrew are both right on this one; PA can definitely be higher than DA in certain situations.
PA is a measure of how likely a page is to rank against any other page in our index, while DA is the same thing for a domain rather than just one page. You can definitely have one page on a domain that ranks well while all of the other pages aren't doing so great.
Both DA and PA are calculated based on a large number of metrics so, while they aren't mutually exclusive, they aren't directly correlated either. DA is taken into account when calculating PA, so a low DA could bring down a high PA a bit, but it doesn't negate all of the other metrics that would make the PA high.
I hope this helps to clear things up!
-
Thanks Eric, lot better said than I put it
-
Yes, I actually see this quite often for smaller sites. DA is looking at the entire site, while PA is only that page so if that one page is really awesome then yes it will have a PA higher than the overall site. Typically that will happen with the homepage or a really great piece of content, since both would attract the most links to your site. Those pages would grow to have a higher PA, which would be a strong indicator these are important for the overall health of the site.
So if you have a page that has a high PA, you can spread that by having a solid internal linking structure within your website. Link from the high PA page to other important pages for your site, and you'll see the PA of the linked pages grow.
-
It can happen that PA is higher than DA on some sites but from my understanding of this both factors can be important and it depends on the situation. They are both measures of ranking power.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
How long will it take to reach DA 2?
Hello, I have a local website (https://iescobill.pk) where I am getting good organic traffic, and also social traffic, and so far my page authority (PA) has reached #13, but DA still 1? Is it normal?
Link Explorer | | iescobill0 -
How do I know when my DA Update?
Before Moz 2.0 we know that every month DA will be updated but now we don't know. Recently my site DA has 14 after few days working on it Then I check my DA is 17 So now I'm confused that the DA update runs again or Now it working on dynamically. I shall be very thankful to you if you clear this issue.
Link Explorer | | mark74220 -
Why my DA dropped Suddenly?
I want to know why my site's DA got changed suddenly? Whereas the DA of other sites of my competitors remained the same. It happened just a few days ago and i noticed it today!
Link Explorer | | yousafsaeed1990sf0 -
Moz's new Link Explorer, including our revamped index and DA/PA scores is now open to everyone!
Hey Moz Community, Link Explorer is now open to the public! Everyone can access it via a subscription or a free Moz ‘Community’ account. As you may know by now, the brand-new Link Explorer tool is primed to replace Open Site Explorer as Moz’s link building and analysis tool. The Link Explorer project is the result of an incredible amount of perseverance and hard work by the team, and we’re proud to be able to finally share it with you — we know it’s going to revolutionize how you approach link building and make your job easier. You can read more about the tool here in Sarah Bird’s announcement post. Because Link Explorer improves on almost every aspect of Open Site Explorer, the metrics have improved, too. That means you’re likely going to see some Domain Authority and Page Authority discrepancies between OSE’s index and Link Explorer’s index. We definitely suggest you use the new DA/PA from Link Explorer, as they’re more accurate and refresh daily rather than monthly, as was the case with OSE’s index. However, we also realize that many of you use these metrics to report to your clients and colleagues, and a sudden change or fluctuation could potentially make your job harder. Which DA is the real DA? The new DA is based on a much larger index that has many improvements, several of which are designed to make the index more like Google’s than ever before. You should consider moving towards the new DA (and the old DA won’t be updated after April 26th 2018, so the sooner the better). While there will be fluctuations as we improve the model and add features to the index, we expect it to remain largely stable and to be a far more accurate picture of a site’s authority according to how it’s seen by Google. Why is Link Explorer’s DA/PA considered better than OSE’s, and which should I trust? The larger link index with improved crawl selection allows us to produce a stronger model that includes a much larger proportion of the web. That being said, DA and PA should always be considered in the context of your competitors. A drop in PA or DA relative to the old OSE is of little concern if your competitors saw similar movement. Is Domain Authority/Page Authority an absolute score or a relative one? Both DA and PA are relative to the Internet as a whole. If Facebook acquired a billion new links, everyone’s PA and DA would drop relative to Facebook. Because of this, it’s always best to look at PA and DA in comparison to your competitors. What does a drop/raise in DA mean in Link Explorer vs OSE? How can I explain this to my clients when I’m reporting it? DA and PA should always be considered in the context of your competitors. A drop or raise in PA or DA relative to the old OSE is of little concern if your competitors saw similar movement. Reporting that your site has moved from a DA of 45 to a DA of 42 doesn’t tell the whole story, but reporting that your site has a DA of 42 while your main competitor moved from a 43 to a 37 shows that, relative to the sites you’re competing against in the SERPs, your site has significantly more authority and ranking power. What’s happening to MozTrust and MozRank and why, and what should I replace those with? The improvements to our DA/PA and Spam Score metrics now now account for more important nuances in helping you determine one site’s ability to rank higher than another. Because they no longer correlate with Google’s ranking model as well as they used to, MozRank and MozTrust are being deprecated for better metrics. Users should rely on Page Authority, Domain Authority, and Spam Score to determine the importance and quality of pages, domains, and links. I have historical data I use to help my clients benchmark their progress. What do I do now that DA is calculated differently? You should annotate any KPI changes referencing the change in DA and PA. However, most importantly, you should compare those changes to your competitors, as this will best show how strong your site’s authority is relative to the sites you’re competing against in the SERPs. We take updating our metrics very seriously, and our last major update to the model was 7 years ago. Users of Domain Authority and Page Authority can expect us to continue to produce steady, reliable metrics for the long haul, and only make changes to these metrics when we believe the benefits dramatically outweigh the stability of the metric. Do you have any questions about the new metrics? Anticipating a tough time reporting changes to clients or bosses? Metrics, features or functionality missing that you would want to see? Let us know in the thread, and we’ll work to find a good answer for you. Hope you enjoy the new Link Explorer product and the amazing new link index powering it. We are very excited to provide this valuable data to our community and customers.
Link Explorer | | IanWatson9 -
PA 1 and DA 1, the website is not new
Hi everyone! I have a website (ponturipariuri.pro), few years old. The PA and DA used to be around 25-35 but now it shows me 1 for both PA and DA. I just discovered it and I do not understand why. Take a look at the image I attached here. There was no spam on my website. Google still shows my website on the first page for many keywords. 3ojp7qt.png
Link Explorer | | adi23050 -
How is DA and PA calculated?
I'm interested to know how DA and PA is calculated. Is it calculated exponentially? i.e. increases out of proportion compare to the power and quantity. So assuming all things are equal... One link of DA40 would be much more powerful than two DA20's?
Link Explorer | | seoman100 -
DA/PA Fluctuations: How to Interpret, Apply, & Understand These ML-Based Scores
Howdy folks, Every time we do an index update here at Moz, we get a tremendous number of questions about Domain Authority (DA) and Page Authority (PA) scores fluctuating. Typically, each index (which release approximately monthly), many billions of sites will see their scores go up, while others will go down. If your score has gone up or down, there are many potential influencing factors: You've earned relatively more or less links over the course of the last 30-90 days.
Link Explorer | | randfish
Remember that, because Mozscape indices take 3-4 weeks to process, the data collected in an index is between ~21-90 days old. Even on the day of release, the newest link data you'll see was crawled ~21 days ago, and can go as far back as 90 days (the oldest crawlsets we include in processing). If you've done very recent link growth (or shrinkage) that won't be seen by our index until we've crawled and processed the next index. You've earned more links, but the highest authority sites have grown their link profile even more
Since Domain and Page Authority are on a 100-page scale, the very top of that represents the most link-rich sites and pages, and nearly every index, it's harder and harder to get these high scores and sites, on average, that aren't growing their link profiles substantively will see PA/DA drops. This is because of the scaling process - if Facebook.com (currently with a DA of 100) grows its link profile massively, that becomes the new DA 100, and it will be harder for other sites that aren't growing quality links as fast to get from 99 to 100 or even from 89 to 90. This is true across the scale of DA/PA, and makes it critical to measure a site's DA and a page's PA against the competition, not just trended against itself. You could earn loads of great links, and still see a DA drop due to these scaling types of features. Always compare against similar sites and pages to get the best sense of relative performance, since DA/PA are relative, not absolute scores. The links you've earned are from places that we haven't seen correlate well with higher Google rankings
PA/DA are created using a machine-learning algorithm whose training set is search results in Google. Over time, as Google gets pickier about which types of links it counts, and as Mozscape picks up on those changes, PA/DA scores will change to reflect it. Thus, lots of low quality links or links from domains that don't seem to influence Google's rankings are likely to not have a positive effect on PA/DA. On the flip side, you could do no link growth whatsoever and see rising PA/DA scores if the links from the sites/pages you already have appear to be growing in importance in influencing Google's rankings. We've done a better or worse job crawling sites/pages that have links to you (or don't)
Moz is constantly working to improve the shape of our index - choosing which pages to crawl and which to ignore. Our goal is to build the most "Google-shaped" index we can, representative of what Google keeps in their main index and counts as valuable/important links that influence rankings. We make tweaks aimed at this goal each index cycle, but not always perfectly (you can see that in 2015, we crawled a ton more domains, but found that many of those were, in fact, low quality and not valuable, thus we stopped). Moz's crawlers can crawl the web extremely fast and efficiently, but our processing time prevents us from building as large an index as we'd like and as large as our competitors (you will see more links represented in both Ahrefs and Majestic, two competitors to Mozscape that I recommend). Moz calculates valuable metrics that these others do not (like PA/DA, MozRank, MozTrust, Spam Score, etc), but these metrics require hundreds of hours of processing and that time scales linearly with the size of the index, which means we have to stay smaller in order to calculate them. Long term, we are building a new indexing system that can process in real time and scale much larger, but this is a massive undertaking and is still a long time away. In the meantime, as our crawl shape changes to imitate Google, we may miss links that point to a site or page, and/or overindex a section of the web that points to sites/pages, causing fluctuations in link metrics. If you'd like to insure that a URL will be crawled, you can visit that page with the Mozbar or search for it in OSE, and during the next index cycle (or, possibly 2 index cycles depending on where we are in the process), we'll crawl that page and include it. We've found this does not bias our index since these requests represent tiny fractions of a percent of the overall index (<0.1% in total). My strongest suggestion if you ever have the concern/question "Why did my PA/DA drop?!" is to always compare against a set of competing sites/pages. If most of your competitors fell as well, it's more likely related to relative scaling or crawl biasing issues, not to anything you've done. Remember that DA/PA are relative metrics, not absolute! That means you can be improving links and rankings and STILL see a falling DA score, but, due to how DA is scaled, the score in aggregate may be better predictive of Google's rankings. You can also pay attention to our coverage of Google metrics, which we report with each index, and to our correlations with rankings metrics. If these fall, it means Mozscape has gotten less Google-shaped and less representative of what influences rankings. If they rise, it means Mozscape has gotten better. Obviously, our goal is to consistently improve, but we can't be sure that every variation we attempt will have universally positive impacts until we measure them. Thanks for reading through, and if you have any questions, please leave them for us below. I'll do my best to follow up quickly.13 -
Find DA from previous months
Hi Guys, I've been asked to pull up the DA for a site from the last couple of months and for the life of me I can't seem to work out how to pull a history of DA for a site. it's only the previous three months but how can I do it? Thanks in advanced.
Link Explorer | | GPainter9