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
-
Change Google's version of Canonical link
Hi My website has millions of URLs and some of the URLs have duplicate versions. We did not set canonical all these years. Now we wanted to implement it and fix all the technical SEO issues. I wanted to consolidate and redirect all the variations of a URL to the highest pageview version and use that as the canonical because all of these variations have the same content. While doing this, I found in Google search console that Google has already selected another variation of URL as canonical and not the highest pageview version. My questions: I have millions of URLs for which I have to do 301 and set canonical. How can I find all the canonical URLs that Google has autoselected? Search Console has a daily quota of 100 or something. Is it possible to override Google's version of Canonical? Meaning, if I set a variation as Canonical and it is different than what Google has already selected, will it change overtime in Search Console? Should I just do a 301 to highest pageview variation of the URL and not set canonicals at all? This way the canonical that Google auto selected might get redirected to the highest pageview variation of the URL. Any advice or help would be greatly appreciated.
Intermediate & Advanced SEO | | SDCMarketing0 -
Does having multiple Domain aliases hurt SEO rank ?
Our company having multiple domain aliases (DIfferent TLD) like example.com, .net, .org, .club, .win to one site (Same Content). We do this because our country ISP is blocking a few of the domain aliases. Question: Does this hurt the SEO rank? What approach is the best for us to gain SEO Rank?
Intermediate & Advanced SEO | | missionunpossible0 -
Changing Brand and Domain Name - SEO Impacts
Hi everyone I'm hoping a few of you can help me out... We're an online-one retailer and we're currently looking at rebranding.
Intermediate & Advanced SEO | | piazza
This is for commercial reasons: Our current name is difficult for customers to spell It's not wholly representative of what we now offer We want to push offline and social marketing to help increase or DA In a nutshell, our current name implies 'cheap' and we're moving more upmarket.
Our DA is only 10, and a re-brand will make our brand more marketable.
A stronger brand and DA will help us climb up the rankings quickly - last year we ranked no 1 for a relatively competitive term before dropping a few places. In terms of current traffic: 30% is via SEO (we have a low DA but rank ok for certain phrases) 70% is via adwords We had our website redesigned last year and it performs well.
The idea is to have a new brand logo and colours and move to a new domain.
We will keep all our existing products and content. Please could anyone let me know the implications of this move?
What are potential pitfalls, and what will we need to do to alert Google?
I have read about 301 redirects, would these be required? As always, any help is very much appreciated. Many thanks Abs0 -
Can I dissavow links on a 301'd website?
So we are performing link removal for a client on his old website (A), which is being 301 redirected to his new website (B). We have identified toxic links on site A and are removing, once complete we will undo the current 301, confirm a new GWT account for website A, and then submit the disavow report. We would then like to reapply the 301 redirect to site B while we are waiting for Google to process the disavow report, the logic being we can retain some current rankings on site B while waiting for the disavow to process on site A. Has anyone had experience with this method? I foresee some potential issues here but am interested to here from others on this. Thanks!
Intermediate & Advanced SEO | | SEOdub1 -
What are Soft 404's and are they a problem
Hi, I have some old pages that were coming up in google WMT as a 404. These had links into them so i thought i'd do a 301 back to either the home page or to a relevant category or page. However these are now listed in WMT as soft 404's. I'm not sure what this means and whether google is saying it doesn't like this? Any advice welcomed.
Intermediate & Advanced SEO | | Aikijeff0 -
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 -
Two Pages with the Same Name Different URL's
I was hoping someone could give me some insight into a perplexing issue that I am having with my website. I run an 20K product ecommerce website and I am finding it necessary to have two pages for my content: 1 for content category pages about wigets one for shop pages for wigets 1st page would be .com/shop/wiget/ 2nd page would be .com/content/wiget/ The 1st page would be a catalogue of all the products with filters for the customer to narrow down wigets. So ultimately the URL for the shop page could look like this when the customer filters down... .com/shop/wiget/color/shape/ The second page would be content all about the Wigets. This would be types of wigets colors of wigets, how wigets are used, links to articles about wigets etc. Here are my questions. 1. Is it bad to have two pages about wigets on the site, one for shopping and one for information. The issue here is when I combine my content wiget with my shop wiget page, no one buys anything. But I want to be able to provide Google the best experience for rankings. What is the best approach for Google and the customer? 2. Should I rel canonical all of my .com/shop/wiget/ + .com/wiget/color/ etc. pages to the .com/content/wiget/ page? Or, Should I be canonicalizing all of my .com/shop/wiget/color/etc pages to .com/shop/wiget/ page? 3. Ranking issues. As it is right now, I rank #1 for wiget color. This page on my site would be .com/shop/wiget/color/ . If I rel canonicalize all of my pages to .com/content/wiget/ I am going to loose my rankings because all of my shop/wiget/xxx/xxx/ pages will then point to .com/content/wiget/ page. I am just finding with these massive ecommerce sites that there is WAY to much potential for duplicate content, not enough room to allow Google the ability to rank long tail phrases all the while making it completely complicated to offer people pages that promote buying. As I said before, when I combine my content + shop pages together into one page, my sales hit the floor (like 0 - 15 dollars a day), when i just make a shop page my sales are like (1k+ a day). But I have noticed that ever since Penguin and Panda my rankings have fallen from #1 across the board to #15 and lower for a lot of my phrase with the exception of the one mentioned above. This is why I want to make an information page about wigets and a shop page for people to buy wigets. Please advise if you would. Thanks so much for any insight you can give me!
Intermediate & Advanced SEO | | SKP0 -
There's a website I'm working with that has a .php extension. All the pages do. What's the best practice to remove the .php extension across all pages?
Client wishes to drop the .php extension on all their pages (they've got around 2k pages). I assured them that wasn't necessary. However, in the event that I do end up doing this what's the best practices way (and easiest way) to do this? This is also a WordPress site. Thanks.
Intermediate & Advanced SEO | | digisavvy0