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Our site uses Canonicals to address duplicate content issues with product/facet filtering. example: www.mysite.com/product?color=blue Relcanon= www.mysite.com/product However, our site is also using no follow for all of the "filters" on a page (so all ?color=, etc. links are no follow). What is the benefit of utilizing the no follow on the filters if we have the rel canon in place? Is this an effort to save crawl budget? Are we giving up possible SEO juice by having the no follow and not having the crawler get to the canonical tag and subsequently reference the main page? Is this just something we just forget about? I hope we're not giving up SEO juice by