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
-
Does anyone know the linking of hashtags on Wix sites does it negatively or postively impact SEO. It is coming up as an error in site crawls 'Pages with 404 errors' Anyone got any experience please?
Does anyone know the linking of hashtags on Wix sites does it negatively or positively impact SEO. It is coming up as an error in site crawls 'Pages with 404 errors' Anyone got any experience please? For example at the bottom of this blog post https://www.poppyandperle.com/post/face-painting-a-global-language the hashtags are linked, but they don't go to a page, they go to search results of all other blogs using that hashtag. Seems a bit of a strange approach to me.
Technical SEO | | Mediaholix0 -
Errors In Search Console
Hi All, I am hoping someone might be able to help with this. Last week one of my sites dropped from mid first day to bottom of page 1. We had not been link building as such and it only seems to of affected a single search term and the ranking page (which happens to be the home page). When I was going through everything I went to search console and in crawl errors there are 2 errors that showed up as detected 3 days before the drop. These are: wp-admin/admin-ajax.php showing as response code 400 and also xmlrpc.php showing as response code 405 robots.txt is as follows: user-agent: * disallow: /wp-admin/ allow: /wp-admin/admin-ajax.php Any help with what is wrong here and how to fix it would be greatly appreciated. Many Thanks
Technical SEO | | DaleZon0 -
Tool to Generate All the URLs on a Domain
Hi all, I've been using xml-sitemaps.com for a while to generate a list of all the URLs that exist on a domain. However, this tool only works for websites with under 500 URLs on a domain. The paid tool doesn't offer what we are looking for either. I'm hoping someone can help with a recommendation. We're looking for a tool that can: Crawl, and list, all the indexed URLs on a domain, including .pdf and .doc files (ideally in a .xls or .txt file) Crawl multiple domains with unlimited URLs (we have 5 websites with 500+ URLs on them) Seems pretty simple, but we haven't been able to find something that isn't tailored toward management of a single domain or that can crawl a huge volume of content.
Technical SEO | | timfrick0 -
Are .clinic domains effective?
We acquired a .clinic domain for a client, they are right now running under a .ca and I was just wondering if there were any cons to making the switch. On the flip side are there any pros? I've tried to search for the answer but couldn't seem to come across anything, thank you if you have any knowledge or could point me to a resource.
Technical SEO | | webignite0 -
Block Domain in robots.txt
Hi. We had some URLs that were indexed in Google from a www1-subdomain. We have now disabled the URLs (returning a 404 - for other reasons we cannot do a redirect from www1 to www) and blocked via robots.txt. But the amount of indexed pages keeps increasing (for 2 weeks now). Unfortunately, I cannot install Webmaster Tools for this subdomain to tell Google to back off... Any ideas why this could be and whether it's normal? I can send you more domain infos by personal message if you want to have a look at it.
Technical SEO | | zeepartner0 -
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 -
Best geotargeting strategy: Subdomains or subfolders or country specific domain
How have the relatively recent changes in how G perceives subdomains changed the best route to onsite geotargeting i.e. not building out new country specific sites on country specific and hosted domains and instead developing sub-domains or sub-folders and geo-targeting those via webmaster tools ? In other words, given the recent change in G perception, are sub-domains now a better option than a sub-folder or is there not much in it ? Also if client has a .co.uk and they want to geo-target say France, is the sub-domain/sub-folder route still an option or is the .co.uk still too UK specific, and these options would only work using a .com ? In other words can sites on country specific domains (.co.uk , .fr, .de etc etc) use sub-folders or domains to geo-target other countries or do they have no option other than to develop new country specific (domains/hosting/language) websites ? Any thoughts regarding current best practice in this regard much appreciated. I have seen last Febs WBF which covers geotargeting in depth but the way google perceives subdomains has changed since then Many Thanks Dan
Technical SEO | | Dan-Lawrence0 -
Exact match subdomains
Hi, I have seen significant SEO benefits from owning exact match domains and was wondering whether exact match subdomains hold the same (or some) of these benefits? eg. halloweencostumes.co.uk vs. halloween [dot] costumes.co.uk Many thanks.
Technical SEO | | martyc0