Skimlinks respects all pre-existing affiliate network links on a page, and we do not overwrite any links that already have affiliate network tracking. Some merchants have their own affiliate tracking that can be tough for us to recognise. If the merchant affiliate link uses links similar to or the same as the natural merchant link then you should contact the support team.
Our script will only re-write unadulterated merchant links without affiliate tags where an affiliate link is available.
Please note that some links may still show as re-redirecting through Skimlinks (go.redirectingat or go.skimresources) however this is only for tracking purposes.