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.
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.
-
All of the content that you have on a subdomain and all of the links that the subdomain attracts could have been working to strengthen your root domain.
In Google you are going out to fight the heavyweights. Do you want to do that with a couple light weight platforms or do you want to unite the clans and attack with all that you got. That is the choice that you make by running subdomains.
I moved and redirected my subdomains into folders on the main website a long time ago and the results were great.
-
Under certain circumstances it can harm the rankings and SEO performance of your main site. In terms of low-end technical SEO issues like broken links and stuff, that usually wouldn't be a problem (unless it were creating loads of broken links from the sub-site, to the main site). If you had a more substantial issue like an active penalty (manual GSC notification) or a malware threat (or hacked content) on your subdomain, that could assuredly harm the main site's rankings. Except in extreme circumstances such as these - I wouldn't worry about it too much
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
-
When creating a sub-domain, does that sub-domain automatically start with the DA of the main domain?
We have a website with a high DA and we are considering sub-folder or sub-domain. One of the great benefits of a sub-folder is that we know we get to keep the high DA, is this also the case for sub-domains? Also if you could provide any sources of information that specify this, I can't see to find anything!
Intermediate & Advanced SEO | | Saba.Elahi.M.0 -
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 -
301 Redirecting from domain to subdomain
We're taking on a redesign of our corporate site on our main domain. We also have a number of well established, product based subdomains. There are a number of content pages that currently live on the corporate site that rank well, and bring in a great deal of traffic, though we are considering placing 301 redirects in place to point that traffic to the appropriate pages on the subdomains. If redirected correctly, can we expect the SEO value of the content pages currently living on the corporate site to transfer to the subdomains, or will we be negatively impacting our SEO by transferring this content from one domain to multiple subdomains?
Intermediate & Advanced SEO | | Chris81980 -
Can subdomains avoid spam penalizations?
Hello everyone, I have a basic question for which I couldn't find a definitive answer for. Let's say I have my main website with URL: www.mywebsite.com And I have a related affiliates website with URL: affiliates.mywebsite.com Which includes completely different content from the main website. Also, both domains have two different IP addresses. Are those considered two completely separate domains by Google? Can bad links pointing to affiliates.mywebsite.com affect www.mywebsite.com in any way? Thanks in advance for any answer to my inquiry!
Intermediate & Advanced SEO | | fablau0 -
What happens to a domain in SERPs when it's set to redirect to another?
We have just acquired a competing website and are wondering whether to leave it running as is for now, or set the domain to redirect to our own site. If we set up this redirect, what would happen to the old site in Google SERPs? Would the site drop off from results? If so, would we capture this new search traffic or is it a free for all and all sites compete for the search traffic as normal? Thanks in advance. Paul
Intermediate & Advanced SEO | | kevinliao0 -
Is .ME domain is effective in SEO ?
I am always listening about TLD. com. org .net but what about the .me domain. Can this will be effective in SEO. Can i able to beat down my competitors, if i choose .me . I also have a .com or other TLD option but if i am making my name than .me is for me but i need your suggestion for the seo purpose. Is there really domain affective in term of SEO.
Intermediate & Advanced SEO | | pnb5670 -
Can you redirect specific sub domain URLs?
ello! We host our PDFs, Images, CSS all in a sub domain. For the question, let's call this sub.cyto.com. I've noticed a particular PDF doing really well, infact it has gathered valuable external links from high authoritative sites. To top it off, it gets good visits. I've been going back and forth with our developers to move this PDF to a subfolder structure.
Intermediate & Advanced SEO | | Bio-RadAbs
For example: www.cyto.com/document/xxxx.pdf In my perspective, if I move this and set up a permanent redirect, then all the external links the PDF gathered, link juice and future visits will be attributed to the main website. Since the PDF is existing in the subdomain, I can't even track direct visits nor get the link juice. It appears in top position of Google as well. My developer says it is better to keep images, pdf, css in the subdomain. I see his point and an idea I have is to: convert the pdf to a webpage. Set up a 301 redirect from the existing subdomain to this webpage Upload the pdf with a new name and link to it from the webpage, so users can download if they choose to. This should give me the existing rank juice. However, my question is whether you can set up a 301 redirect for just a single subdomain URL to a folder structure URL? sub.cyto.com/xxx.pdf to www.cyto.com/document/xxxx.pdf?0 -
How Google Adwords Can Impact SEO Ranking ?
Hi SEO Gurus, I have a question. How Google Adwords Can Impact SEO Ranking ?
Intermediate & Advanced SEO | | Webdeal
Positive , negative or neutral impact? I will appreciate if you will provide detailed answer Thank you for your time webdeal0
