What is the KEI
写于2009-10-25 @ 分类:google adwords |评论(0)
KEI :Keyword Effectiveness Index.
KEI is the method of comparing the number of searches for a keyword to the number of results in the search engines. Keyword Effectiveness Index starts at zero and goes up to an indefinite number. The lower a keyword's KEI the harder it is to rank for it.


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