Backlinks from subdomain, can it hurt ranking?
-
I just started doing an SEO audit and noticed I have 40,000 some odd back links from an OLD version of our site that has been moved to a subdomain. The back links are for articles that already exist on our main site. I don't think Google is picking it up as duplicate content because that site isn't being crawled anymore. Could this hurt us SEO wise? I plan on removing the site, but how long after it's been removed should those back links disappear?
-
So there were no external links pointing to the subdomain admin.site.com ? If that's the case you could probably just noindex/nofollow the thing or let it 404. You could write an .htaccess rule to rewrite the domain name, but it's actually probably not worth it now that I think about it. The exception, of course, is if the subdomain had external links pointed to it.
-
Hi there,
Thanks for your reply. I'm not sure how feasible it is to redirect all of those urls. I know I could use regex but I just terminated the server that admin.site.com lived on so I can't access a robots.txt file anymore. Could I simply do a generic redirect admin.site.com -> site.com?
The subdomain was the same site and domain.
Thanks.
-
Okay, so the situation here is a little unclear, but the solution should be pretty straightforward.
If the admin.site.com was different from the original site domain, simply noindex/nofollow all of the pages on that domain. I recommend this over a robots.txt rule because it will actually remove them from the index. You can add a disallow all rule in robots.txt later once the site is completely noindexed.
If the admin.site.com was the same domain, I'd recommend redirecting all of those pages to the new URLs again and then launching a noindex/nofollow version blocked with robots.txt, though I'm not sure why it needs to exist for reference. If the subdomain was different from the old site you could also probably just noindex/nofollow all of it without the redirect. It's not best practice, but it's not that big a deal.
Hope this helps to answer.
-
If you took website down, you don't have to really do anything. Go to search console, do fetch as google on old admin subdomain, so google understands that it's not there anymore, and then just wait. Google will take those backlinks down.
-
The other thing I should note is that these site links do not show in Google when searching for the topic. I'm only seeing reported back links because the admin.site.com subdomain was blocked from Google crawling it for search results. Not sure if that makes a difference.
-
It says I can only demote 100 links, I need to demote upwards of 40,000 since the admin.site.com basically mirrored the actual site.
Now I'm a little confused.
I took the old site down, so I can use a robots.txt file there anymore.
So how can I disallow the entire admin subdomain and stop reporting back links?
-
I see. Read my response below and just use meta robots. it will help you out.
If you want to deindex those backlinks, you also can look into Google Search Console's demoting tool, but i don't think it's necessary.
-
Don't do that, disallow in robots.txt will NOT resolve indexing issue! What you need to use is meta robots. Noindex, nofollow. Watch this WBF on this subject:
-
Thanks
-
Hi there. Thanks for your response.
The pages exist on the new site, but the subdomain should have never been indexed. I noticed the back links in Google Console initially then confirmed with SEO Power Suite.
Basically we had site.com, then created a brand new site and migrated content over to newsite.com with 301 redirects from the old site. Then we wanted to keep the old site up for reference so we put it at admin.site.com. That is where all the 40,000 back links were coming from, admin.site.com, the old site.
There is no reason for us to redirect admin.site.com since the original articles were properly redirected. I guess however some how when the old site was taken down, Google must have indexed it still at the subdomain and counted those as backlinks.
-
Just make sure you add a robots.txt to the subdomain with
User-agent: * Disallow: / Or if the old site is not needed anymore, redirect the subdomain to your main domain and remove the site.
-
Hi there.
So, all the pages, from which those backlinks are coming from are non-existent anymore? have they been redirected? do they return 404s? Also, how did you find them? in Google Search Console or another tool?
So, if you found it in Google Search Console, and the original pages indeed have been removed and properly redirected, then it's just time delay by GSC. Otherwise (if those pages are crawlable), you should fix it.
Hope this makes sense.
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
-
How much time does it takes for a backlink to get registered in Google? My basketball anime website has been live since start of this week and Google has not registered any backlink.
So my website https://www.animedhfa.com/basketball-anime/ about basketball Anime has shown no changes in DA or backlinks. It has been 5 days perhaps since it went live.
Link Building | | ahmad74750 -
Backlink Transparency with SEO Agency
Hello everyone. I recently started working with an SEO agency and today they gave me an updated keyword report which showed some increase in rankings. I was not aware that any backlinks had been created yet so I asked for a report of the links. Their response is below and I am just wondering if this is normal practice being I have not worked with any type of SEO agency yet. "
Link Building | | wonderd24
Hey Daniel, We release a small report on them which the guest blog team will do soon. We don't reveal all backlink sources unfortunately because people have tried to bother the webmasters we have and basically steal our techniques. But rest assured you will be ranking at the top of the pack with our methods 😃
"1 -
Paid for News Media backlinks
We have been lucky to have some great coverage and resultant backlinks on some very high domain authority news sites such as The Times in the UK. Now that a lot of their content (including our articles and backlinks) is now gated because they are a subscription based, does: Google site attribute the same domain authority to the subscription sites? Does Google site crawl this content? Does the same Google Juice flow once the site is gated? Is the value of 'paid for content sites' eroded?
Link Building | | Switch_Digital0 -
Maintaining or improving keyword ranking
I started a second website recently and it is doing very well. I am on the first page for a competitive keyword - spot 5 according to Moz. It is actually a category page that is ranking so well which is a surprise to me as I have read many times that I should deindex category pages due to duplicate content! My questions: 1. How do I get backlinks to a CATEGORY page?! I have been able to get backlinks to certain posts because my website is a deal blog and other deal blogs give me credit for popular deals by linking to my post. 2. How can I maintain this high ranking? Of course I want in spot 3 but this website isn't even 2 months old so I know I should be patient. At this point, I just want to stay on the first page. What is the best way to do that? I am about to fill out the SEO stuff for the category page which I haven't done yet.Thanks!
Link Building | | dealblogger0 -
Too much backlinks [Penalized]
Hello, I purchased a backlink service and I think the most of them were spam sites and sites like that. I am lossing Organic traffic, Im sure that my site is penalized, how long will last it?Can I do something? Thank you
Link Building | | matiw0 -
Ranking strategy -which pages to rank?
Hi, I hope you can help. I am looking to rank for 10 keywords. My homepage has some authority. On what pages should I focus my optimisation on? Should I create a new page for each keyword and build links to these pages or try and optimise my home page for a number of keywords? If so how many keywords should you optimise for from your home page to get the most clout? Im a little confused about which strategy would be the most effective. Many thanks.
Link Building | | rpoon0 -
Page Rank Update
I was hit by Google’s latest Page Rank update. I know “don’t be obsessed with Page Rank”, but it concerns me. I thought that I was developing a very good link profile and actually was hopeful that it would go to a PR-5 and it dropped to a PR-3. www.simply-bags.com I have another site www.keepsakes-etc.com and have done very little link building and it also dropped to a PR-3. Can anyone give me some honest feedback about my concern?
Link Building | | b4tv0 -
Can PR0 backlinks be harmful?
Having a discussion on someone with whether or not PR0 backlinks can be harmful. Managed to find these blog posts that support my argument; http://geoland.org/2011/02/can-bad-links-hurt-your-google-rankings/ http://www.johnmcelborough.com/bad-links-good-site My argument: Things like article spinning and distribution are pretty much pointless. I used UniqueArticleWizard for a while when I first started out with SEO. It gave me around 1000 PR0 backlinks. A few weeks later my site was penalised from PR5 to PR2. Thanks
Link Building | | craven220