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.
Will errors on a subdomain effect the overall health of the root domain?
-
As stated in the question, we have 2 sub domains that contain over 2000 reported errors from SEOMOZ.
The root domain has a clean bill of health, and i was just wondering if these errors on the sub-domains could have a negative effect on the root domain in the eyes of Google.
Your comments will be appreciated.
Regards
Greg
-
Hi Greg - short answer is, it depends... Which means, of course, there's a long answer
In Google's eyes, subdomains are often, though not always, treated as separate entities from the main domain, meaning if content or issues on them is giving Google trouble, that won't necessarily extend to the other parts of the domain. However, this isn't always the case. We've certainly seen times when having spam or manipulative behavior on a subdomain meant the root domain and content on it suffered as well.
In the case you're describing, if the crawl issues are things like missing meta descriptions or long titles or other less-than-critical errors, I wouldn't be too worried. But if it's lots of 404s or duplicate content or infinite redirect loops, those could cause issues.
If you're really not worried at all about what Google thinks of the subdomains or the content on them, you could always use robots.txt to block them from accessing it, which should cause Google to not weight that content when judging the site as a whole.
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
-
I have a question about the impact of a root domain redirect on site-wide redirects and slugs.
I have a question about the impact (if any) of site-wide redirects for DNS/hosting change purposes. I am preparing to redirect the domain for a site I manage from https://siteImanage.com to https://www.siteImanage.com. Traffic to the site currently redirects in reverse, from https://www.siteImanage.com to https://siteImanage.com. Based on my research, I understand that making this change should not affect the site’s excellent SEO as long as my canonical tags are updated and a 301 redirect is in place. But I wanted to make sure there wasn’t a potential consequence of this switch I’m not considering. Because this redirect lives at the root of all the site’s slugs and existing redirects, will it technically produce a redirect chain or a redirect loop? If it does, is that problematic? Thanks for your input!
Technical SEO | | mollykathariner_ms0 -
How can you promote a sub-domain ahead of a domain on the SERPs?
I have a new client that wants to promote their subdomain uk.imagemcs.com and have their main domain imagemcs.com fall off the SERPs. Objective? Get uk.imagemcs.com to rank first for UK 'brand' searches. Do a search for 'imagem creative services' and you should see the issue (it looks like rules have been applied to the robots.txt on the main domain to exclude any bots from crawling - but since they've been indexed previously I need to take action as it doesn't look great!). I think I can do this by applying a permanent redirect from the main domain to the subdomain at domain level and then no-indexing the site - and then resubmit the sitemap. My slight concern is that this no-indexing of the main domain may impact on the visibility of the subdomains (I'm dealing with uk.imagemcs.com, but there is us.imagemcs.com and de.imagemcs.com) and was looking for some assurance that this would not be the case. My understanding is that subdomains are completely distinct from domains and as such this action should have no impact on the subdomains. I asked the question on the Webmasters Forum but haven't really got anywhere
Technical SEO | | nathangdavidson2
https://productforums.google.com/forum/#!msg/webmasters/1Avupy3Uw_o/hu6oLQntCAAJ Can anyone suggest a course of action? many thanks, Nathan0 -
Spammers created bad links to old hacked domain, now redirected to our new domain. Advice?
My client had an old site hacked (let's call it "myolddomain.com") and the hackers created many links in other hacked sites with links such as http://myolddomain.com/styless.asp?jordan-12-taxi-kids-cheap-T8927.html The old myolddomain.com site was redirected to a different new site since then, but we still see over a thousand spam links showing up in the new site's Search Console 404 crawl errors report. Also, using the links: operator in google search, we see many results of spam links. Should we be worried about these bad links pointing to our old site and redirecting to 404s on the new site? What is the best recommendation to clean them up? Ignore? 410s? Other? I'm seeing conflicting advice out there. The old site is hosted by the client's previous web developer who doesn't want to clean anything up on their end without an ongoing hosting contract. So beyond turning redirects on or off, the client doesn't want to pay for any additional hosting. So we don't have much control over anything related to "myolddomain.com". 😞 Thanks in advance for any assistance!
Technical SEO | | usDragons0 -
Should we move our documentation off subdomain?
Background: We have a popular open source e-commerce platform at http://spreecommerce.com. Right now the documentation is on http://guides.spreecommerce.com. We have "edge" documentation (for stuff that's not yet released) on http://edgeguides.spreecommerce.com but since it's largely duplicative we've told google not to index any of the edge stuff (via robots.txt). Question: Should we consider moving the guides under the main website under /docs or something like this? There's a ton of great content that people often read to learn more about the platform. Seems like we might be diluting our juice a bit to have it on a separate domain. WDYT?
Technical SEO | | schof0 -
Subdomain vs Main Domain Penalties
We have a client who's main root.com domain is currently penalized by Google, but the subdomain.root.com is appearing very well. We're stumped - any ideas why?
Technical SEO | | Prospector-Plastics0 -
Transfer a Main Domain to a Sub-Domain
My IT department tells me they want to transfer my main site domain, which has been in existence since 1999 as an e-commerce site (maindomain.com) to a sub-domain (www2.maindomain.com) or a completely new domain (newdomain.net). This is because we are launching a new website and B2C e-commerce engine, but we still have to maintain the legacy B2B e-commerce engine which contains hard-coded URLs, and both systems can't use the same domain. I've been researching the issue across SEOmoz, but I haven't come across this exact type of scenario (mostly I've seen a sub-domain to new domain). I see major problems with their proposal, including negative SEO impact, loss of domain authority/ranking and issues with branding. Does anyone know the exact type of impact I can expect to see in this scenario and specific steps I should go about to minimize the impact? Btw, I will be using Danny Dover's guide on properly moving domains where appropriate. Thanks!
Technical SEO | | AscendLearning0 -
How to 301 multiple domain names to a single domain
Hey, I tried to find and answer to this seemingly simple question, but no luck. So, I have one domain name with a website attached to it. I also registered all the other domain names that are similar to it or have different extensions - I want to redirect all the other domain names to my one main domain name without getting penalised by the big G. It looks like this: www.mainsite.com - this is my main domain I also have www.mainsite.com.au, www.mainsite.org, and www.mainsite.org.au which I all want to just redirect to www.mainsite.com I have been told that the best way to do this is a 301 redirect, but to do that you need to make a CNAME for all the other domains that points to www.mainsite.com. My problem is that I cannot seem to create a CNAME record for http://mainsite.com - I have it working for http://www.mainsite.com but not the non www record. What should I be doing differently? Is it just my DNS provider is useless? Thanks, Anthony
Technical SEO | | Grenadi0 -
Using hyphenated sub-domains or non-hyphenated sub-domains? What is the question! I Any takers?
For our corporate business level domain, we are exploring using a hyphenated sub-domain foir a project. Something like www.go-figure.extreme.com I thought from a user perspective it seems cluttered. The domain length might also be an issue with the new Algorithm big G has launched in recent past. I know with past experience, hyphenated domains usually take longer to index, as they are used by spammers more frequently and can take longer to get out of the supplementary index. Our company site has over 90 million viewers / year, so our brand is well established and traffic isn't an issue. This is for a corporate level project and I didn't have the answer! Will this work? anyone have any experience testing this. Any thoughts will help! Thanks, Rob
Technical SEO | | RobMay0