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WDF * IDF vs Keyword density

Discussion in 'Black Hat SEO' started by CrushL, Jan 24, 2014.

  1. CrushL

    CrushL Junior Member

    Joined:
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    I was wondering about this stuff and couldn't find a thread on BHW about this. If you do not know about WDF and IDF, I added the following section with a quick explanation.



    My question is: Has anybody tested this long term? And if so, are there good tools available for it? I'd especially be interested in a tool that can differentiate between languages (google.com/.fr/.co.uk/.de). since all the stuff I'm using now is set on a specific language.

    If this stuff works, writing texts could be optimized a lot.