Deindexing dynamic PHP pages risky?

Discussion in 'Black Hat SEO' started by DannyZhang, Aug 25, 2014.

  1. DannyZhang

    DannyZhang Regular Member

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    I custom built my own e commerce website with PHP and many of the links currently look like it:

    product.php?productid=246

    The homepage of the website is ranking fine but the product pages are not ranking at all.

    I got a hunch it's because of the URL structure.

    I intend to URL rewrite the pages to something better like this:

    category/product-item/

    So I intend to do the URL rewrite and deindex all the old pages using GWT. Anyone had experience with URL rewriting a site with current pages what are the best practices for doing so?