No more Doppelgangers with Similar Page Checker
November 12th, 2007

Search engines are known to take action upon pages with similar or duplicate content. To avoid the hassle of being penalized and lose points in the relevancy department because of duplicate or similar content, there is Similar Page Checker.
Using the tool is simple. Just key in two URLs from your site that you want to check for similarity and press submit. The tool will return to you a percentage value, which is the amount of similarity between the two URLs. This works well when checking for likenesses of pages within your own site. The more unique each of your pages are, the better the chances of it not being filtered by search engines. This can also check for similarities between two different websites. Just input your site’s URL and the URL of the site with possibly similar content.
Search engines filter pages depending on varying percentages of similarity, so there’s no definite numerical goal. The tool’s real aim is to keep the amount of similarity as little as possible. This way, you get peace of mind that all your pages will get indexed.
Similar Page Checker works on most browsers.