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
-
Can subdomains hurt your primary domain's SEO?
Our primary website https://domain.com has a subdomain https://subDomain.domain.com and on that subdomain we have a jive-hosted community, with a few links to and fro. In GA they are set up as different properties but there are many SEO issues in the jive-hosted site, in which many different people can create content, delete content, comment, etc. There are issues related to how jive structures content, broken links, etc. My question is this: Aside from the SEO issues with the subdomain, can the performance of that subdomain negatively impact the SEO performance and rank of the primary domain? I've heard and read conflicting reports about this and it would be nice to hear from the MOZ community about options to resolve such issues if they exist. Thanks.
Intermediate & Advanced SEO | | BHeffernan1 -
Move domain to new domain, for how much time should I keep forwarding?
I'm not sure but my website looks like is not getting it's juice as supposed to be. As we already know, google preferred https sites and this is what happened to mine, it was been crawling as https but when the time came to move my domain to new domain, I used 301 or domain forwarding service, unfortunately they didn't have a way to forward from https to new https, they only had regular http to https, when users clicked to my old domain from google search my site was returned to "site does not exist", I used hreflang at least that google would detect my new domain been forwarding and yes it worked but now I'm wondering, for how much time should I keep the forwarding the old domain to the new one, my site looks like is not going up, I have changed all the external links, any help would be appreciated. Thanks!
Intermediate & Advanced SEO | | Fulanito1 -
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 -
Can't generate a sitemap with all my pages
I am trying to generate a site map for my site nationalcurrencyvalues.com but all the tools I have tried don't get all my 70000 html pages... I have found that the one at check-domains.com crawls all my pages but when it writes the xml file most of them are gone... seemingly randomly. I have used this same site before and it worked without a problem. Can anyone help me understand why this is or point me to a utility that will map all of the pages? Kindly, Greg
Intermediate & Advanced SEO | | Banknotes0 -
Consolidating Multiple Domains into A Single Domain
I have a client who's website is an amalgamation of multiple domains. jacksonhole.net is the main domain but the site passes traffic back and forth from the following domains/sites. My questions is, would it it be better for SEO to consolidate all of these domains under the single high authority domain and 301 redirect the rest or is that a really bad idea? Thanks for your help. jacksonhole.net (Domain Authority 31) jackson-hole-rental-condos.com (Domain Authority 22) jackson-hole-rental-homes.com (Domain Authority 21) j acksonholehotelguide.com (Domain Authority 19)
Intermediate & Advanced SEO | | dbaxa-2613381 -
How do I get rel='canonical' to eliminate the trailing slash on my home page??
I have been searching high and low. Please help if you can, and thank you if you spend the time reading this. I think this issue may be affecting most pages. SUMMARY: I want to eliminate the trailing slash that is appended to my website. SPECIFIC ISSUE: I want www.threewaystoharems.com to showing up to users and search engines without the trailing slash but try as I might it shows up like www.threewaystoharems.com/ which is the canonical link. WHY? and I'm concerned my back-links to the link without the trailing slash will not be recognized but most people are going to backlink me without a trailing slash. I don't want to loose linkjuice from the people and the search engines not being in consensus about what my page address is. THINGS I"VE TRIED: (1) I've gone in my wordpress settings under permalinks and tried to specify no trailing slash. I can do this here but not for the home page. (2) I've tried using the SEO by yoast to set the canonical page. This would work if I had a static front page, but my front page is of blog posts and so there is no advanced page settings to set the canonical tag. (3) I'd like to just find the source code of the home page, but because it is CSS, I don't know where to find the reference. I have gone into the css files of my wordpress theme looking in header and index and everywhere else looking for a specification of what the canonical page is. I am not able to find it. I'm thinking it is actually specified in the .htaccess file. (4) Went into cpanel file manager looking for files that contain Canonical. I only found a file called canonical.php . the only thing that seemed like it was worth changing was changing line 139 from $redirect_url = home_url('/'); to $redirect_url = home_url(''); nothing happened. I'm thinking it is actually specified in the .htaccess file. (5) I have gone through the .htaccess file and put thes 4 lines at the top (didn't redirect or create the proper canonical link) and then at the bottom of the file (also didn't redirect or create the proper canonical link) : RewriteEngine on
Intermediate & Advanced SEO | | Dillman
RewriteCond %{HTTP_HOST} ^([a-z.]+)?threewaystoharems.com$ [NC]
RewriteCond %{HTTP_HOST} !^www. [NC]
RewriteRule .? http://www.%1threewaystoharems.com%{REQUEST_URI} [R=301,L] Please help friends.0 -
Buying Expired Domains with Decent DA/PA for SEO Purposes
Hey guys, i've seen some stuff about this before but I recently found an opportunity to put it into action and wanted to make sure I knew what I was getting into! I am looking at buying a domain (expired and now only 10 dollars) that has a decent domain authority and has some keywords in it related to my clients practice. I plan on using a 301 redirect to pass "link juice" because this client is looking for a quick bump in rankings. Thoughts? Benefits? Problems with this?
Intermediate & Advanced SEO | | RickyShockley1 -
Is it safe to 301 redirect old domain to new domain after a manual unnatural links penalty?
I have recently taken on a client that has been manually penalised for spammy link building by two previous SEOs. Having just read this excellent discussion, http://www.seomoz.org/blog/lifting-a-manual-penalty-given-by-google-personal-experience I am weighing up the odds of whether it's better to cut losses and recommend moving domains. I had thought under these circumstances it was important not to 301 the old domain to the new domain but the author (Lewis Sellers) comments on 3/4/13 that he is aware of forwards having been implemented without transferring the penalty to the new domain. http://www.seomoz.org/blog/lifting-a-manual-penalty-given-by-google-personal-experience#jtc216689 Is it safe to 301? What's the latest thinking?
Intermediate & Advanced SEO | | Ewan.Kennedy0