Cloaking

Cloaking is the process of showing search engine spiders different page content than human eyes see by using server-side scripting. Cloaking is against search engine guidelines and is considered a Black Hat SEO technique. The script can identify a search engine robot by its IP address and show it keyword-heavy content that may result in a higher ranking than that from its visible content to visitors. Cloaking a web site may result in the site getting banned from the search engine index.