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
-
Huge ranking flux that we cannot explain
Hello, SEO experts from around the world. We need your help; we have seen massive ranking flux across our website and others. We cannot explain what is causing this ranking flux. The content marketing is top quality, so we don’t know why we are moving from 25 to 50th on Google and sometimes even beyond that. Can any SEO experts explain why our agency is moving so much within Google’s rankings? We don’t know whether to make changes or possibly wait. Any help would be fantastic; thank you all.
Algorithm Updates | | sarahwalsh0 -
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 ranking impact: Returning visitor vs New visitor
Hi all, If a website's traffic increase in "New visitors"; will this impact rankings? Do the website overall traffic affect rankings? How much this is related with ranking improvement for main keywords? Just because thousands of visits increased for website, will it count as a strong ranking improvement signal? Thanks
Algorithm Updates | | vtmoz0 -
Ranking For Synonyms Without Creating Duplicate Content.
We have 2 keywords that are synonyms we really need to rank for as they are pretty much interchangeable terms. We will refer to the terms as Synonym A and Synonym B. Our site ranks very well for Synonym A but not for Synonym B. Both of these terms carry the same meaning, but the search results are very different. We actively optimize for Synonym A because it has the higher search volume of the 2 terms. We had hoped that Synonym B would get similar rankings due to the fact that the terms are so similar, but that did not pan out for us. We have lots of content that uses Synonym A predominantly and some that uses Synonym B. We know that good content around Synonym B would help, but we fear that it may be seen as duplicate if we create a piece that’s “Top 10 Synonym B” because we already have that piece for Synonym A. We also don’t want to make too many changes to our existing content in fear we may lose our great ranking for Synonym A. Has anyone run into this issue before, or does anyone have any ideas of things we can do to increase our position for Synonym B?
Algorithm Updates | | Fuel0 -
How much link juice does a sites homepage pass to inner pages and influence inner page rankings?
Hi, I have a question regarding the power of internal links and how much link juice they pass, and how they influence search engine ranking positions. If we take the example of an ecommerce store that sells kites. Scenario 1 It can be assumed that it is easier for the kite ecommerce store to earn links to its homepage from writing great content on its blog, as any blogger that will link to the content will likely use the site name, and homepage as anchor text. So if we follow this through, then it can be assumed that there will eventually be a large number of high quality backlinks pointing to the sites homepage from various high authority blogs that love the content being posted on the sites blog. The question is how much link juice does this homepage pass to the category pages, and from the category pages then to the product pages, and what influence does this have on rankings? I ask because I have seen strong ecommerce sites with very strong DA or domain PR but with no backlinks to the product page/category page that are being ranked in the top 10 of search results often, for the respective category and product pages. It therefore leads me to assume that internal links must have a strong determiner on search rankings... Could it therefore also be assumed that a site with a PR of 5 and no links to a specific product page, would rank higher than a site with a PR of 1 but with 100 links pointing to the specific product page? Assuming they were both trying to rank for the same product keyword, and all other factors were equal. Ie. neither of them built spammy links or over optimised anchor text? Scenario 2 Does internal linking work both ways? Whereas in my above example I spoke about the homepage carrying link juice downward to the inner category and product pages. Can a powerful inner page carry link juice upward to category pages and then the homepage. For example, say the blogger who liked the kite stores blog content piece linked directly to the blog content piece from his site and the kite store blog content piece was hosted on www.xxxxxxx.com/blog/blogcontentpiece As authority links are being built to this blog content piece page from other bloggers linking to it, will it then pass link juice up to the main blog category page, and then the kite sites main homepage? And if there is a link with relevant anchor text as part of the blog content piece will this cause the link juice flowing upwards to be stronger? I know the above is quite winded, but I couldn't find anywhere that explains the power of internal linking on SERP's... Look forward to your replies on this....
Algorithm Updates | | sanj50500 -
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 -
Sub-Links of Organic SERP
I would like to know if you can modify (or suggest) the sub-links under an organic listing. For Example: Main Link/Title = COMPANY NAME - What We Do.... Sub-Links (popular pages within site) currently include links like: Locations / Catalog Request / Bestsellers Is it possible to suggest other pages as sub-links or do the search engines determine these? Please advise, and thanks in advance....
Algorithm Updates | | WhiteCap0 -
To use the same content just changing the keywords could be seen as duplicate content?
I want to offer the same service or product in many different cities, so instead of creating a new content for each city what I want to do it to copy the content already created for the product and service of a city and then change the name of the city and create a new url inside my website for each city. for example let say I sell handmade rings in the USA, but I want o target each principal city in the USA, so I have want to have a unque url for ecxh city so for example for Miami I want to have www.mydomain.com/handmade-rings-miami and for LA the url would be www.mydomain.com/handmade-rings-la Can I have the same content talking about the handmade rings and just change the keywords and key phrases? or this will count as a duplicate content? content: TITLE: Miami Handmade Rings URL :www.mydomain.com/handmade-rings-miami Shop Now handmade rings in Miami in our online store and get a special discount in Miami purchases over $50 and also get free shipping on Miami Local address... See what our Miami handmade rings clients say about our products.... TITLE: LA Handmade Rings URL: www.mydomain.com/handmade-rings-la Shop Now handmade rings in LA in our online store and get a special discount in LA purchases over $50 and also get free shipping on LA Local address... See what our LA handmade rings clients say about our products.... There are more than 100 location in the country I want to do this, so that is why I want to copy paste and replace.. Thanks in advance, David Orion
Algorithm Updates | | sellonline1230