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.
Why some domains and sub-domains have same DA, but some others don't?
-
Hi
I noticed for some blog providers in my country, which provide a sub-domian address for their blogs. the sub-domain authority is exactly as the main domain. Whereas, for some other blog providers every subdomain has its different and lower authority.
for example "ffff.blog.ir" and "blog.ir" both have domain authority of 60. It noteworthy to mention that the "ffff.blog.ir" does not even exist!
This is while mihanblog.com and hfilm.mihanblog.com has diffrent page authority.
-
Hey!
DA scores are specific to the root domain, we are not taking into account a subdomain. So even if you search a subdomain that doesn't exist (ffff.blog.ir), DA score is still only relevant to the root domain (blog.ir) which does exist.
Page Authority on the other hand is specific to the exact page you are searching, so it makes sense that mihanblog.com and hfilm.mihanblog.com would have different page authority scores are they are separate pages.
Hope that helps, let me know if you have further questions.
-
Am pretty sure that Moz just unifies DA stats in some circumstances when they have no 'actual' data for the subdomain in question. Sites which are very important, which have a number of sub-domains (but not hundreds or thousands) often render different results for DA metrics. For some blog platforms (blogger is a good example, also "blogname.wordpress.com" WordPress hosted blogs) - they have thousands or hundreds of thousands of sub-domains and Moz can't index all of them
In these situations, if Moz comes across a subdomain which is well-linked across the web it will separate it out and ascribe unique values. For the rest (of which Moz holds no data), it probably just unifies the DA metric with the root domain
It's a symptom of an incomplete index of the web. That being said, no one has a complete index of the web - you have to work with what you got
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
-
Forwarded vanity domains, suddenly resolving to 404 with appended URL's ending in random 5 characters
We have several vanity domains that forward to various pages on our primary domain.
Intermediate & Advanced SEO | | SS.Digital
e.g. www.vanity.com (301)--> www.mydomain.com/sub-page (200) These forwards have been in place for months or even years and have worked fine. As of yesterday, we have seen the following problem. We have made no changes in the forwarding settings. Now, inconsistently, they sometimes resolve and sometimes they do not. When we load the vanity URL with Chrome Dev Tools (Network Pane) open, it shows the following redirect chains, where xxxxx represents a random 5 character string of lower and upper case letters. (e.g. VGuTD) EXAMPLE:
www.vanity.com (302, Found) -->
www.vanity.com/xxxxx (302, Found) -->
www.vanity.com/xxxxx (302, Found) -->
www.vanity.com/xxxxx/xxxxx (302, Found) -->
www.mydomain.com/sub-page/xxxxx (404, Not Found) This is just one example, the amount of redirects, vary wildly. Sometimes there is only 1 redirect, sometimes there are as many as 5. Sometimes the request will ultimately resolve on the correct mydomain.com/sub-page, but usually it does not (as in the example above). We have cross-checked across every browser, device, private/non-private, cookies cleared, on and off of our network etc... This leads us to believe that it is not at the device or host level. Our Registrar is Godaddy. They have not encountered this issue before, and have no idea what this 5 character string is from. I tend to believe them because per our analytics, we have determined that this problem only started yesterday. Our primary question is, has anybody else encountered this problem either in the last couple days, or at any time in the past? We have come up with a solution that works to alleviate the problem, but to implement it across hundreds of vanity domains will take us an inordinate amount of time. Really hoping to fix the cause of the problem instead of just treating the symptom.0 -
Sub Domain Usage
I see that the gap uses gap.com, oldnavy.gap.com and bananarepublic.gap.com. Wouldn't a better approach for SEO to have oldnavy.com, bananarepublic.com and gap.com all separate? Is there any benefit to using the approach of store1.parentcompany.com, store2.parentcompany.com etc? What are the pros and cons to each?
Intermediate & Advanced SEO | | kcb81780 -
What are best page titles for sub-folders or sub-directories? Same as website?
Hi all, We always mention "brand & keyword" in every page title along with topic in the website, like "Topic | vertigo tiles". Let's say there is a sub-directory with hundreds of pages...what will be the best page title practice in mentioning "brand & keyword" across all pages of sub-directory to benefit in-terms if SEO? Can we add "vertigo tiles" to all pages of sub-directory? Or we must not give same phrase? Thanks,
Intermediate & Advanced SEO | | vtmoz0 -
Is it possible to have organization markup schema for sub domain ? and how should it look like ?
Can we have organization markup schema for subdomain ? For example if my main domain is xyz.com and subdomain is sub.xyz.com If i plan to have organization markup schema for subdomain how should it look like ? Should the markup schema must have main domain url or sub domain url in markup schema ? Should it be like this ?
Intermediate & Advanced SEO | | NortonSupportSEO0 -
One of my Friend's website Domain Authority is Reducing? What could be the reason?
Hello Guys, One of my friend's website domain authority is decreasing since they have moved their domain from HTTP to https.
Intermediate & Advanced SEO | | Max_
There is another problem that his blog is on subfolder with HTTP.
So, can you guys please tell me how to fix this issue and also it's losing some of the rankings like 2-5 positions down. Here is website URL: myfitfuel.in/
here is the blog URL: myfitfuel.in/mffblog/0 -
My landing pages don't show up in the SERPs, only my frontpage does.
I am having some trouble with getting the landing pages for a clients website to show up in the SERPs.
Intermediate & Advanced SEO | | InmediaDK
As far as I can see, the pages are optimized well, and they also get indexed by Google. The website is a danish webshop that sells wine, www.vindanmark.com Take for an instance this landing page, http://www.vindanmark.com/vinhandel/
It is optimzied for the keywords "Vinhandel Århus". Vinhandel means "Winestore" and "Århus" is a danish city. As you can see, I manage to get them at page 1 (#10), but it's the frontpage that ranks for the keyword. And this goes for alle the other landing pages as well. But I can't figure out, why the frontpage keep outranking the landingpages on every keyword.
What am I doing wrong here?1 -
Best way to block a sub-domain from being indexed
Hello, The search engines have indexed a sub-domain I did not want indexed its on old.domain.com and dev.domain.com - I was going to password them but is there a best practice way to block them. My main domain default robots.txt says :- Sitemap: http://www.domain.com/sitemap.xml global User-agent: *
Intermediate & Advanced SEO | | JohnW-UK
Disallow: /cgi-bin/
Disallow: /wp-admin/
Disallow: /wp-includes/
Disallow: /wp-content/plugins/
Disallow: /wp-content/cache/
Disallow: /wp-content/themes/
Disallow: /trackback/
Disallow: /feed/
Disallow: /comments/
Disallow: /category//
Disallow: */trackback/
Disallow: */feed/
Disallow: /comments/
Disallow: /?0 -
How to do geo targeting for domain and sub directories in Webmaster tool?
Hello All, How can i do geo targeting in multiple countries on my ** root domain and sub **directories in Webmaster tool. My domain is "abc.com" and i want to target three countries UAE , Kuwait, Saudi arabia. So, Can i assign geo targeting in Webmaster tool , Root domain for UAE country and make other two sub directories for Kuwait and saudi ? abc.com - UAE (geo targeting) abc.com/kw - Kuwait (geo targeting) abc.com/sa - Saudi (geo targeting) Or Root doamain should be not assign for any country and Make three sub directories for UAE, Kuwait , and saudi and targeting them there geo locations. abc.com - Unlisted (geo targeting) abc.com/uae/ - UAE (geo targeting) abc.com/kw/ - Kuwait (geo targeting) abc.com/sa/ - Saudi (geo targeting)
Intermediate & Advanced SEO | | rahul110