Search Engine News

Check if a Site Serves Malware Before Linking for SEO

Loren Baker

11/10/08

10 Comments

When building links to a site for SEO purposes, it’s easy to simply look at the number of backlinks, content relevance, Linkscape rating, search term rankings and other valuable criteria for measuring the importance and value of a site before acquiring a link on that site to your own.

In terms of checking bad SEO neighborhoods which would link to your site, it’s always good to monitor the inbound links to your potential linking partner’s site, and see what kind of sites those links are coming from and whether or not they belong to obvious link swapping or reciprocal linking schemes. But do you check to see if a site has been flagged for distributing malware?

Google routinely tells webmasters that links pointing to your site may not devalue the ranking of your own site, mostly because a webmaster cannot police the sites which link to them. On the otherhand, a good amount of SEO’s who practice negative SEO on websites of competitors or sites which complain about a product will tell you that building bad links to a site they wish to target will lead to lowered Google rankings.

So, in an effort to not only protect your site from linking out to bad neighborhoods, but also to protect bad neighborhoods from linking to you, I suggest that before you link out or build an incoming links, make sure that site has not been flagged by Google for distributing malware. How can you do this? I highly suggest taking the time to view this video from StewArtMedia.biz on how to check if a site is distributing malware (compliments of IMBroadcast.com and also covered by Dave Harry)

Key take away : Use Google’s Safe Browsing Diagnostic Checker which alerts you if a site is suspicious of distributing malware. For an example, let’s look at the results from News.com.au :

    What is the current listing status for news.com.au?

    This site is not currently listed as suspicious.

    Part of this site was listed for suspicious activity 2 time(s) over the past 90 days.

What happened when Google visited this site?

    Of the 1708 pages we tested on the site over the past 90 days, 31 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2008-11-10, and the last time suspicious content was found on this site was on 2008-11-02.

    Malicious software includes 336 scripting exploit(s), 4 exploit(s). Successful infection resulted in an average of 3 new processes on the target machine.

    Malicious software is hosted on 10 domain(s), including p060523.info, douhunqn.cn, imrworldwide.com.

    4 domain(s) appear to be functioning as intermediaries for distributing malware to visitors of this site, including douhunqn.cn, letusearch.com, kkexe.com.

So, before linking to a site, or building a link to your site from another, I highly suggest checking out the malware distribution history of a site, especially in the eyes of Google, if Google feels that the site is malicious, chances are linking to these bad sites, or building links from them, can hurt your rankings which in the long run, can damage your business.

10 Comments

  • Great post. I spoke about these checking tools again many months ago. If you are looking for some italian content, you can start browsing my anchor.

  • Canvas Art says:

    Thanks for the Post,as it had provided outline regarding effect of malware distribution. I have not used the tool till date which is mentioned in the article,definately i will use it for checking

  • James.Pt says:

    Really this post was very informative.It helps in taking precautionary measure before going for linkbuilding process with the malware websites.

  • Ros says:

    You should also check with SiteAdvisor. The service is similar, but it also has an element of user reports. Sometimes one tool will pick something up and the other won’t. It’s good to be vigilant.

  • Thanks for the great post. It sounds good to know about the linking site.

  • Anngelica says:

    LinkScanner can also be used to check for malware, in real-time. The scanning functionality is available online if you prefer not to download the software. You can scan the URL at http://www.explabs.com/.

  • Although I think common sense should rule the day, sometimes young and inexperienced SEMs in their zeal, seldom do due diligence in checking out their links.

  • Dave says:

    Hi Loren… glad U liked it. Was doing my new rounds, (vid hunting) and thought that was a great little tool that goes in the box easily and takes little effort. Those are often the best tools.

    He said ‘thanks’ in this week’s offering, shall post it shortly (vid about GA custom reports).

    Tnx for the thumbs up – always appreciated.

  • Coco says:

    Hell yes! Great idea. This will most definitely alter the manner in which I am building links. Thanks.

  • This post was really helpful. been looking for a reliable link checker for awhile, had no clue google had done it.

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