Skip to content
    Moz logo Menu open Menu close
    • Products
      • Moz Pro
      • Moz Pro Home
      • Moz Local
      • Moz Local Home
      • STAT
      • Moz API
      • Moz API Home
      • Compare SEO Products
      • Moz Data
    • Free SEO Tools
      • Domain Analysis
      • Keyword Explorer
      • Link Explorer
      • Competitive Research
      • MozBar
      • More Free SEO Tools
    • Learn SEO
      • Beginner's Guide to SEO
      • SEO Learning Center
      • Moz Academy
      • MozCon
      • Webinars, Whitepapers, & Guides
    • Blog
    • Why Moz
      • Digital Marketers
      • Agency Solutions
      • Enterprise Solutions
      • Small Business Solutions
      • The Moz Story
      • New Releases
    • Log in
    • Log out
    • Products
      • Moz Pro

        Your all-in-one suite of SEO essentials.

      • Moz Local

        Raise your local SEO visibility with complete local SEO management.

      • STAT

        SERP tracking and analytics for enterprise SEO experts.

      • Moz API

        Power your SEO with our index of over 44 trillion links.

      • Compare SEO Products

        See which Moz SEO solution best meets your business needs.

      • Moz Data

        Power your SEO strategy & AI models with custom data solutions.

      Let your reputation grow with Reviews AI
      Moz Local

      Let your reputation grow with Reviews AI

      Learn more
    • Free SEO Tools
      • Domain Analysis

        Get top competitive SEO metrics like DA, top pages and more.

      • Keyword Explorer

        Find traffic-driving keywords with our 1.25 billion+ keyword index.

      • Link Explorer

        Explore over 40 trillion links for powerful backlink data.

      • Competitive Research

        Uncover valuable insights on your organic search competitors.

      • MozBar

        See top SEO metrics for free as you browse the web.

      • More Free SEO Tools

        Explore all the free SEO tools Moz has to offer.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • Learn SEO
      • Beginner's Guide to SEO

        The #1 most popular introduction to SEO, trusted by millions.

      • SEO Learning Center

        Broaden your knowledge with SEO resources for all skill levels.

      • On-Demand Webinars

        Learn modern SEO best practices from industry experts.

      • How-To Guides

        Step-by-step guides to search success from the authority on SEO.

      • Moz Academy

        Upskill and get certified with on-demand courses & certifications.

      • MozCon

        Save on Early Bird tickets and join us in London or New York City

      Unlock flexible pricing & new endpoints
      Moz API

      Unlock flexible pricing & new endpoints

      Find your plan
    • Blog
    • Why Moz
      • Digital Marketers

        Simplify SEO tasks to save time and grow your traffic.

      • Small Business Solutions

        Uncover insights to make smarter marketing decisions in less time.

      • Agency Solutions

        Earn & keep valuable clients with unparalleled data & insights.

      • Enterprise Solutions

        Gain a competitive edge in the ever-changing world of search.

      • The Moz Story

        Moz was the first & remains the most trusted SEO company.

      • New Releases

        Get the scoop on the latest and greatest from Moz.

      Surface actionable competitive intel
      New Feature

      Surface actionable competitive intel

      Learn More
    • Log in
      • Moz Pro
      • Moz Local
      • Moz Local Dashboard
      • Moz API
      • Moz API Dashboard
      • Moz Academy
    • Avatar
      • Moz Home
      • Notifications
      • Account & Billing
      • Manage Users
      • Community Profile
      • My Q&A
      • My Videos
      • Log Out

    The Moz Q&A Forum

    • Forum
    • Questions
    • Users
    • Ask the Community

    Welcome to the Q&A Forum

    Browse the forum for helpful insights and fresh discussions about all things SEO.

    1. Home
    2. SEO Tactics
    3. Technical SEO
    4. Does my "spam" site affect my other sites on the same IP?

    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.

    Does my "spam" site affect my other sites on the same IP?

    Technical SEO
    4
    5
    943
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as question
    Log in to reply
    This topic has been deleted. Only users with question management privileges can see it.
    • eglove
      eglove last edited by

      I have a link directory called Liberty Resource Directory. It's the main site on my dedicated IP, all my other sites are Addon domains on top of it.

      While exploring the new MOZ spam ranking I saw that LRD (Liberty Resource Directory) has a spam score of 9/17 and that Google penalizes 71% of sites with a similar score. Fair enough, thin content, bunch of follow links (there's over 2,000 links by now), no problem. That site isn't for Google, it's for me.

      Question, does that site (and linking to my own sites on it) negatively affect my other sites on the same IP? If so, by how much? Does a simple noindex fix that potential issues?

      Bonus: How does one go about going through hundreds of pages with thousands of links, built with raw, plain text HTML to change things to nofollow? =/

      1 Reply Last reply Reply Quote 0
      • eglove
        eglove last edited by

        @Tom Roberts, your thinking is about on the same page as mine. I've always been suspect of "C-Blocks" as a ranking too.  I don't use a CMS for this site, as I said it's all hard coded. Does the nofollow tag in the head section have the same effect as a nofollow on individual links? At least PHP could solve that issue pretty easily.

        1 Reply Last reply Reply Quote 0
        • TomRayner
          TomRayner last edited by

          Hi Ethan

          In theory - yes it could.  We know that Google looks at a domain's Class-C IP level (at least - now that Google is a registrar it may extend to the full IP) when judging its quality.  If a site is in a "bad neighbourhood" - ie sitting on an IP range with a number of 'spam' sites - then theoretically it could be affected, as a kind of guilty by association.

          However, in reality I have some doubts as to whether this would happen.  The fact is that the vast majority of the web uses shared hosting (particularly sme's) and so good sites are invariably always going to be mixed in with 'bad' sites.  And what's stopping me from deliberately making a bad site on your IP in order to 'poison it'?  I'm no way near that evil, but someone might be.

          What I'm getting at here is that it seems extremely unlikely that there is a manageable way to differentiate these sites efficiently - which leads me to believe that having your spam site on the same IP as some 'good' sites _shouldn't _make a difference.

          What you can do to reduce this risk even further would be to make sure the 'spam' site doesn't link to any properties of yours that you want to protect, to nofollow those links if feasible (not sure what CMS you're using but WordPress has a few plugins that would do this on bulk) and, if it isn't required, noindexing the site would pretty much get rid of all risk completely.

          Hope this helps!

          1 Reply Last reply Reply Quote 1
          • MattAntonino
            MattAntonino last edited by

            If you don't use the site in Google, you should noindex it just to clear up any potential issues (especially if the domains link together in any way.)

            • Bonus: How does one go about going through hundreds of pages with thousands of links, built with raw, plain text HTML to change things to nofollow? =/

            Download the full site and open all the pages in Notepad++.  Find & replace.  Save, reupload.

            1 Reply Last reply Reply Quote 1
            • Alick300
              Alick300 last edited by

              Hi Ethan,

              I will say yes & no. Please watch below Matt cutts video on the exact issue.

              https://www.youtube.com/watch?v=AsSwqo16C8s&noredirect=1

              I hope it helps.

              Thanks

              1 Reply Last reply Reply Quote 0
              • 1 / 1
              • First post
                Last post

              Got a burning SEO question?

              Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.


              Start my free trial


              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.

              • See all categories

              Related Questions

              • Digital_Reach

                Google Search Console "Text too small to read" Errors

                What are the guidelines / best practices for clearing these errors? Google has some pretty vague documentation on how to handle this sort of error. User behavior metrics in GA are pretty much in line with desktop usage and don't show anything concerning Any input is appreciated! Thanks m3F3uOI

                Technical SEO | | Digital_Reach
                2
              • McFaddenGavender

                "Search Box Optimization"

                A client of ours recently received en email from a random SEO "company" claiming they could increase website traffic using a technique known as "search box optimization". Essentially, they are claiming they can insert a company name into the autocomplete results on Google. Clearly, this isn't a legitimate service - however, is it a well known technique? Despite our recommendation to not move forward with it, the client is still very intrigued. Here is a video of a similar service:
                https://www.youtube.com/watch?v=zW2Fz6dy1_A

                Technical SEO | | McFaddenGavender
                0
              • slangdon

                Google is Showing Website as "Untitled"

                My freelance designer made some changes to my website and all of a sudden my homepage was showing the title I have in Dmoz. We thought maybe the NOODP tag was not correct, so we edited that a little and now the site is showing as "Untitled". The website is http://www.chemistrystore.com/. Of course he didn't save an old copy that we can revert to. That is a practice that will end. I have no idea why the title and description that we have set for the homepage is not showing in google when it previously was. Another weird thing that I noticed is that when I do ( site:chemistrystore.com ) in Google I get the https version of the site showing with the correct title and description. When I do ( site:www.chemistrystore.com ) in Google I don't have the hompage showing up from what I can tell, but there are 4,000+ pages to the site. My guess is that if it is showing up, it is showing up as "Untitled". My question is.... How can we get Google to start displaying the proper title and description again?

                Technical SEO | | slangdon
                0
              • RobertFisher

                On a dedicated server with multiple IP addresses, how can one address group be slow/time out and all other IP addresses OK?

                We utilize a dedicated server to host roughly 60 sites on. The server is with a company that utilizes a lady who drives race cars.... About 4 months ago we realized we had a group of sites down thanks to monitoring alerts and checked it out. All were on the same IP address and the sites on the other IP address were still up and functioning well. When we contacted the support at first we were stonewalled, but eventually they said there was a problem and it was resolved within about 2 hours. Up until recently we had no problems. As a part of our ongoing SEO we check page load speed for our clients. A few days ago a client who has their site hosted by the same company was running very slow (about 8 seconds to load without cache). We ran every check we could and could not find a reason on our end. The client called the host and were told they needed to be on some other type of server (with the host) at a fee increase of roughly $10 per month. Yesterday, we noticed one group of sites on our server was down and, again, it was one IP address with about 8 sites on it. On chat with support, they kept saying it was our ISP. (We speed tested on multiple computers and were 22MB down and 9MB up +/-2MB). We ran a trace on the IP address and it went through without a problem on three occassions over about ten minutes. After about 30 minutes the sites were back up. Here's the twist: we had a couple of people in the building who were on other ISP's try and the sites came up and loaded on their machines. Does anyone have any idea as to what the issue is?

                Technical SEO | | RobertFisher
                0
              • travelocitysearch

                Google.ca is showing our US site instead of our Canada Site

                When our Canadian users who search on google.ca for our brand (e.g. Travelocity, Travelocity hotels, etc.), the first few results our from our US site (travelocity.com) rather than our Canadian site (travelocity.ca). In Google Webmaster Tools, we've adjusted the geotargeting settings to focus on the appropriate locale, but the wrong country TLD is still coming up at the top via google.ca. What's the best way to ensure our Canadian site comes up instead of the US site on google.ca? Thanks, Tory Smith
                Travelocity

                Technical SEO | | travelocitysearch
                0
              • ShaMenz

                Is "last modified" time in XML Sitemaps important?

                My Tech lead is concerned that his use of a script to generate XML sitemaps for some client sites may be causing negative issues for those sites. His concern centers around the fact that the script generates a sitemap which indicates that every URL page in the site was last modified at the exact same date and time. I have never heard anything to indicate that this might be a problem, but I do know that the sitemaps I generate for other client sites can choose server response or not. What is the best way to generate the sitemap? Last mod from actual time modified, or all set at one date and time?

                Technical SEO | | ShaMenz
                0
              • GriffinHansen

                What are the pros and cons of moving one site onto a subdomain of another site?

                Two sites. One has weaker sales. What would the benefits and problems for SEO of moving the weak site from its own domain to a subdomain of the stronger site?

                Technical SEO | | GriffinHansen
                0
              • craigycraig

                301 Redirect "wildcard" question

                I have been looking at the SEOmoz redirect guide for some advice but I can't seem to find the answer : http://www.seomoz.org/learn-seo/redirection I have lots of URLs from a previous version of a site that look like the following: sitename.com/-c-25.html?sort=2d&page=1 sitename.com/-c-25.html?sort=3a&page=1 etc etc. I want to write a redirect so whenever a URL with the terms "-c-25.html" is requested it redirects to a specified page, regardless of what comes after the question mark. These URLs were created by our previous ecommerce software. The 'c' is for category, and each page of the cateogry created a different URL. I want to do these so I can rediect all of these URLs to the appropraite new cateogry page in a single redirect. Thanks for any help.

                Technical SEO | | craigycraig
                0

              Get started with Moz Pro!

              Unlock the power of advanced SEO tools and data-driven insights.

              Start my free trial
              Products
              • Moz Pro
              • Moz Local
              • Moz API
              • Moz Data
              • STAT
              • Product Updates
              Moz Solutions
              • SMB Solutions
              • Agency Solutions
              • Enterprise Solutions
              • Digital Marketers
              Free SEO Tools
              • Domain Authority Checker
              • Link Explorer
              • Keyword Explorer
              • Competitive Research
              • Brand Authority Checker
              • Local Citation Checker
              • MozBar Extension
              • MozCast
              Resources
              • Blog
              • SEO Learning Center
              • Help Hub
              • Beginner's Guide to SEO
              • How-to Guides
              • Moz Academy
              • API Docs
              About Moz
              • About
              • Team
              • Careers
              • Contact
              Why Moz
              • Case Studies
              • Testimonials
              Get Involved
              • Become an Affiliate
              • MozCon
              • Webinars
              • Practical Marketer Series
              • MozPod
              Connect with us

              Contact the Help team

              Join our newsletter
              Moz logo
              © 2021 - 2025 SEOMoz, Inc., a Ziff Davis company. All rights reserved. Moz is a registered trademark of SEOMoz, Inc.
              • Accessibility
              • Terms of Use
              • Privacy

              Looks like your connection to Moz was lost, please wait while we try to reconnect.