Search engine spamming often gets confused with legitimate search engine optimization (SEO). Spamming involves getting a site more exposure than it deserves for its keywords, leading to unsatisfactory search experiences to users.
In other words, search engine spam points that the excessive manipulation to influence site rankings, often for pages which include little or no relevant content.
Yahoo! defines spam as "pages created deliberately to trick the search engine into offering inappropriate, redundant, or poor-quality search results."
And here is Inktomi's spam policy:
"What Inktomi Considers Unwanted: Some, but not all, examples of the more common types of pages that Inktomi does not want include:"
- Pages which harm accuracy, diversity or relevance of search results
- Pages whose sole purpose is to direct the user to another page
- Pages which have substantially the same content as other pages
- Sites with numerous, unnecessary virtual host names
- Pages in great quantity, automatically generated or of little value
- Pages using methods to artificially inflate search engine ranking
- The use of text that is hidden from the user
- Giving the search engine a different page than the public sees (cloaking)
- Cross-linking sites excessively, to inflate a site's apparent popularity
- Pages built primarily for the search engines
- Misuse of competitor names
- Multiple sites offering the same content
- Pages which use excessive pop-ups, interfering with user navigation
- Pages that are deceptive, fraudulent or provide a poor user experience