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Spam Filter Expert >> What is Spam >> What is Search Engine Spam
What is Search Engine Spam?
Search engines use a variety of algorithms to determine relevancy ranking. Some of these include determining whether the search term appears in the META keywords tag, others whether the search term appears in the body text or URL of a web page. Many search engines check for instances of spamdexing and will remove suspect pages from their indexes.
The rise of search engine spam in the mid-1990s made the leading search engines of the time largely useless, and the success of Google at both producing better search results and combating keyword spamming, through its reputation-based PageRank link analysis system, helped it become the dominant search site late in the decade, where it remains. While it has not been rendered useless by search engine spam, Google has not been immune to more sophisticated methods either. Google bombing is a form of search engine result manipulation, which involves placing hyperlinks that directly affect the rank of other sites.
Common search engine spam techniques can be classified into two broad classes: content spam and link spam.
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