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Hello, My company uses a tracking system that allows our employees to apply a short code snippet to the end of our URLs for marketing attribution. An example of such a code would be: https://www.schoolofmotion.com/?ref_id=moz-test However, in Google Analytics we are seeing duplicates of our content, where the pages with the individual tracking codes are counted separately from the pages without. From a reporting perspective, this is annoying and definitely worth a fix. However, I'm curious if this problem is affecting our search potential as well. Could this tracking system be splitting traffic in Google's eyes? From an SEO perspective, how should we approach this? Would canonical tags fix this duplication issue in Google Analytics? Is there something else that we should use? Thanks in advance. The Moz community is incredible.