CSS History Stealing Applied to Black Hat SEO - Improved

October 9th, 2006 by Stefan Juhl

QuadsZilla points to the old JavaScript & CSS history hack and then goes on to explain how this can be applied to black hat SEO. The technique is in all simplicity just to cheat bloggers and link exchange prospects into believing that you’re linking to them when you’re actually not.

Well, it’s a good idea but I don’t think it will work wonders. The victims should be rather un-savvy in the area of linking if they wouldn’t check to actual html. Of course many aren’t so savvy but if they actually care I believe many would check the html for rel=”nofollow” etc.

But it doesn’t need to be that way. The technique should just be improved a bit by combining it with some cloaking. Instead of just serving the link with javascript when the site is in peoples history we’d do something a bit smarter.

When the javascript is triggered we’d log their ip, write a cookie and redirect them to the same page. But this time when the page is to be served our server-side scripting will know that the user is possibly the victim. So we’d output the specific link directly in the html. Now if the victim should decide to check the source the link will appear just as it should.

If you want to play around with the javascript then use Christian Heilmann’s version since it works with IE unlike the first one.

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Posted in Black Hat SEO, Link Building / Bait |

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Stefan Juhl