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.
Sub-domain with spammy content and links: Any impact on main website rankings?
-
Hi all,
One of our sub-domains is forums. Our users will be discussing about our product and many related things. But some of the users in forum are adding a lot of spammy content everyday. I just wonder whether this scenario is ruining our ranking efforts of main website? A sub domain with spammy content really kills the ranking of main website?
Thanks
-
Hi vtmoz,
I see you have posted an updated question on this issue separately - regarding the spammy inbound links pointing to this subdomain. That is a more likely problem for your site.
That said, the more spam that shows up on that subdomain, the more likely Google is to seeing your site as part of a "bad neighborhood" of the web, and this could risk the organic visibility of your root domain.
There is no documentation on "how much spammy content is too much" - generally, some spammy content on a subdomain doesn't negatively impact the entire domain. However I have seen cases where an entire domain was negatively impacted by a very large number of spammy pages on various subdomains. It's a matter of scale.
If your rankings and traffic on your primary domain are important, my advice would be to mitigate the risk by either policing the content on your forum subdomains by bringing in admins, or shutting down the forums entirely.
Best,
Mike
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
-
Why my Domain Authority (DA) is Decreased
Hello, I would like to know how the changes in domain authority is considered by MOZ? Domain Authority for my this domain https://factohr.com was 14 and it is decreased to 13 in this week. Though i have a very decent and good links going over to all my pages howcome my DA is affected and decreased. As its regularly being updated and has a high quality traffic! i would like to know the reason behind decrement in DA and is there any connection with redirection of .com domain? How can i increase DA for my website?
Algorithm Updates | | MyMoz710 -
Do the sub domain backlinks count for main domain and increase authority?
Hi all, I just wonder if the back links for different sub domains will be counted and considered to rank the main domain better or they are just limit to sub domain pages? There are many websites which has got multiple sub domains which receive backlinks? So the backlinks to main domain and sub domain weigh same at Google? Thanks
Algorithm Updates | | vtmoz0 -
Google & Tabbed Content
Hi I wondered if anyone had a case study or more info on how Google treats content under tabs? We have an ecommerce site & I know it is common to put product content under tabs, but will Google ignore this? Becky
Algorithm Updates | | BeckyKey1 -
Exact Keywords Domain name
Hello everyone!, I would love to have your opinion on this matter. I am working on a company e-commerce site; these guys would like to change their domain name AND their company name, so the most logical thing that came to mind was to name the domain after the company name. However, they also bought in the past a domain that have the exact keyword they would like to rank for. I know that keywords in the URL are not as important as they used to be in the past, but nonetheless when I do a Google search for those keywords, 3 domains out of 10 on the first page are slight variations of those same keywords, meaning that they might have a really good domain name (also the other result are government, medical stuff and so on). And, no matter how many times I have read that keywords in the URL are not so important anymore, I still see a lot of sites ranking also because of their domain name (well at least outside the US) So, my question here is: would it be better for them to use the exact match keyword-domain name or should they use their company name for their new site? Or some sort combination of the two? (the keyword-domain that in some way points also to the brand domain). Thanks for your opinions on this; really appreciate it! Cheers
Algorithm Updates | | Eyah0 -
Guest Blog Post or Article Content Should be Do-Follow or No-Follow Link ? Help Plz !
Many SEO writers and blogs after Google Matt Cutt said, You should not allow no-follow link in Guest Post. What should we do. ? I am allowing Guest post - what they ask in return a do-follow link to their site or blog. other articles or post i wrote about inspiration collected from different source or single portfolio site - i credit them(as blogger - we should respect them). What i am doing right or wrong ? Please advise and help me on this ! http://searchengineland.com/google-guest-blogging-for-links-you-better-nofollow-those-links-166218
Algorithm Updates | | Esaky0 -
Should I link to competitors?
Hi, I was wondering: we work in an extremely competitive market. There are 6 companies, offering the same service in my country: price comparison in a niche market. The competitors have hundreds of different websites, using iframe-techniques. Would it be helpful for me to link to those 6 competitors, in a piece of content about our company strategies, USP's and overview of the market? From a transparency point of view, i would prefer telling my visitors there are other competitors, which are undoubtedly performing very well, but we perform better on several aspects of the price comparison. On the other hand, my competitors benefit from the backlinks as well. Is my gain bigger than the gain of my competitors do you think? Has anyone tested this once?
Algorithm Updates | | Beekhuizen1 -
Correlation of Rankings with Personal Pronouns?
Has there been any tests or studies that associate writing in the first person or using "emotional" feeling phrases to higher rankings. More specifically to a blog structure. I'm trying a blog option with a local telecommunications company, however I'm having flashbacks of writing those 5 paragraph essays when taking the SATs. The owner decided he should take on the responsibility and it's like he just can't bring himself to write from a personal perspective. He's a bit stuck in the "professional" mindset and worried about appearing unprofessional. I empathize with his perspective, but I know it's not going to work..or maybe it will? it's just not going to be interesting to readers, but perhaps google will appreciate the fresh content. I don't think letting an employee takeover will be an option as he's very protective of the company's image. So would you ditch the blog? or continue with the dull posts?
Algorithm Updates | | squareplug0 -
Decline in traffic but no change in rankings
I'm comparing our best search traffic month in 2011 (March) with our current traffic (April)and have seen significant declines in traffic, despite no change in our rankings or even improved rankings for the same terms. Trying to sort out an explanation. We have been a white-hat SEO site since our inception over 10 years ago. Our SEO consultant doesn't think we've been affected by any algo changes, at least not to any significant degree. My only explanation for this possibly anomaly is: decrease in the use of the KW terms in search over time (how to determine?) generalized increase in PPC instead of organic search driving traffic possibility that Adv Web Rankings is no longer accurately collecting SERP rankings Does anyone have any other thoughts or considerations that might explain the decline in traffic, despite maintenance or improvement in rankings? Thanks.
Algorithm Updates | | ahw0