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.
Site has DA of 26 but no backlinks
-
I'm asking this for a guy over at SEOchat: http://forums.seochat.com/new-user-seo-questions-answers-123/unusual-change-domain-authority-486962.html
Here's what his post says:
Exclamation Unusual Change in Domain authority
Guys and Girls,I'm having a weird issue in one of my sites , thing is the site had DA 11 in July and however when check on September Site is having 26 without me doing any type of link building and there are no new posts for this month as well. When checked using open site explorer there are no backlinks indexed in their Mozcape index as well.
Site: http://www.beijingtravelchannel.com/
Can you give me any plausible reasons for this to happen, so that i can check them out.
Thanks in Advance.
-
I just posted this for a user on a forum I am a moderator on so unfortunately I can't answer that question.
This was his reply to your post:
"Hi, Thomas I think the lady who replied last to your thread in Moz had hit the spot. backlink from Washington post must have bump up the DA ( Even though the change is too high ). I wonder why this link didn't show up in web master tools. Google mustn't have indexed this link thus far. and Moz not showing the link is also a question. "
-
I see everyone's responses and understand that DA is based on a variety of factors, but I also agree that a domain authority of 26 seems unusually high for this site.
Majestic reports a Trust Flow of 0 and Citation Flow of 31 and 35 incoming links from 8 different sources, both of which would lend me to expect a lower domain authority for this site. That said, a couple of the recently discovered incoming links are coming from powerful sources, most notably:
- https://www.washingtonpost.com/opinions/what-us-publishers-owe-china/2015/05/26/0b100ff8-02fd-11e5-bc72-f3e16bf50bb6_story.html?utm_term=.1ad4d52de865; and
- http://blog.livedoor.jp/takemiya31/archives/51761738.html
It's possible Moz found these links and just isn't displaying them in Open Site Explorer.
It's not unusual to see dramatic fluctuations in DA when a site has few incoming links. If it was me, I'd wait to see what the next API update reports before concluding real progress has been made. Did you bump up the volume of content on the site recently?
-
To determine Domain Authority, we employ machine learning against Google's algorithm to best model how search engine results are generated. Over 40 signals are included in this calculation. It's possible that the other factors that contribute to Domain Authority are helping to carry the score a bit higher than it otherwise would be. A solid backlink profile is one of the best ways to work on improving a DA score, but it's not the only way.
It's also possible that we previously found and indexed backlinks pointing to this domain, but those backlinks have since fallen out of our Mozscape Index. The links themselves would likely still be in place, but unless our tools were prompted to re-crawl the area of the web where they first found the links, they could very well no longer be included in the current data set and aren't currently displaying if you look at this domain in Open Site Explorer.
You can read more about Domain Authority over here, if this is helpful to you: https://moz.com/learn/seo/domain-authority
-
Everything I can see is all link based though. So this is a link metric correct?
If so, how does a site have a DA of 26 but no link profile.
-
Hi there! Tawny from Moz's Customer Support team here.
Domain Authority is a score (on a 100-point scale) developed by Moz that predicts how well a website will rank on search engines. It is made up of an aggregate of metrics (MozRank, MozTrust, general link profile, and more) that each have an impact on this score. it can be difficult to directly influence your DA, but one way to move toward increasing it would be to improve your overall SEO. A great place to start with that could be to focus on link building! You can learn more about link building here and get a more detailed explanation of Domain Authority through this resource.
In general, I'd recommend keeping in mind that all of these metrics are relative with respect to the other sites included in our index. The metrics will probably have some additional context when compared to sites similar to your own, including your competitors.
Rand does a great job of breaking down how to interpret DA fluctuations through this post. Give it a once over to see if it helps clarify some of your questions! I hope this helps!
-
I am sure I have read that it isn't just links, but quite happy for MOZ to put this right.
What makes me thing it isn't just links, is this:
The best way to influence this metric is to improve your overall SEO. In particular, you should focus on your link profile—which influences MozRank and MozTrust
So it says to focus on your link profile, but improve your overall SEO - I would assume from this that it is more heavily biased towards links, but that isn't the end of it.
-Andy
-
-
Hi Thomas,
DA isn't just calculated off links, so it could be a wide range of factors making this happen. Moz explain it here:
Domain Authority is Moz's calculated metric for how well a given domain is likely to rank in Google's search results. It is based off data from the Mozscape web index and includes link counts, MozRank and MozTrust scores, and dozens of other factors. It uses a machine learning model to predictively find an algorithm that best correlates with rankings across thousands of search results that we predict against.
I hope this helps
-Andy
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 is Moz DA affected by spam links? Disavow file?
So it does not appear that moz let's you upload your disavow file. So when moz calculates your DA how do spammy links factor in? After digging through our GA it appears our site was hit with the 2016 penguin update and never recovered. Our weekly visitors were 2k, then dropped to 500 and have stayed close to that level for a while. We've used the disavow tool, without success over the past 3 years. During that time we have done link out reach and built around 10 legit good quality DA links since. But we have not recovered. At this point i'm thinking I should just remove the disavow file. Moz says our spam score for our domain is 5%.
Link Explorer | | jessicapremier0 -
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 -
Backlinks to pdf files
hi.. im looking for solution how to get all backlinks to .pdf files on my site.
Link Explorer | | tybi-seochat
to get list of .pdf files with backlinks. and for them list of backlinking urls. thanks a lot0 -
Spam Score and crawling of my site
Hello, I'm trying to analyze the spam score of my site which is 9/17 Actually I have few backlinks and all of them have a low spam score (max 4/17, just one). I think there's some kind of issue with the crawler since I get strange spam factors: Large Site with Few Links (likely true, I recently deleted a lot of tags used once) Low Number of Pages Found (wasn't it a "Large Site"??) Low Number of Internal Links (I got a considerable number) No Contact Info (I have a link to my facebook in the menu and a "contacts" page) Thin Content (It's just a blog with min 300 words per post, why thin?) Site Link Diversity is Low (likely true) Ratio of Followed to Nofollowed Subdomains (likely true) Low MozTrust or MozRank Score (true) Ratio of Followed to Nofollowed Domains (likely true) Can you please help me to understand it, is it a crawling problem or similar? If needed I will post the url of the website. Thank you so much Marco
Link Explorer | | MarcoBP0 -
How does spammy linked site have zero spam score?
I came across a law firm site with hundreds of horrible spam links to it. Of the 3330 links, all but 231 links have anchor text that has to do with "jordan 11s for sale". I'm trying to see how useful the moz spam score is, but clearly it's not reliable if this site has a score of zero. Many of the obviously spammy sites linking to it also have low to zero spam scores, although there are plenty in the 5-10 range. (see attached image). I also noticed that many sites were legit sites, but if you look at the source code, there's tons of hidden spam links in the code (e.g., www.chickasawgardens.net) Why would this site have a zero spam score? If you're curious, put it into open site explorer and have a look. It's a law firm based in Pennsylvania, most anchor text has to do with jordan sneakers and most links are foreign: penn-criminallawyers.com Is the spam score too lenient? Is the moz tool unable to find spam links coming from legitimate sites with hidden spam links? DrokMbP
Link Explorer | | usDragons0 -
Open site explorer is giving me strange redirect message.
Hi all, I tried to find answer in help section. Few people have asked this before but in none of the answers it tells how they fix it. Sorry I will need to ask here again. In Open Site Explorer i get this message. You entered the URL https://a-fotografy.co.uk/ which redirects to http://www.a-fotografy.co.uk/. Because it's likely to have more accurate metrics, we're showing data for the redirected URL instead. Click here to analyze https://a-fotografy.co.uk/ instead? My current site is https://a-fotografy.co.uk/ not sure why it is redirecting to my old domain. Weird. My web developer couldn't explain this issue. Saying that I also go my first analytics report and in priority issues I have http://a-fotografy.co.uk 302 redirect and not sure where it is redirecting to. If someone could shed some light of how to figure out how to find exactly what is redirecting to what and where is the problem. Thank you guys, Regards, Armands
Link Explorer | | A_Fotografy0 -
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