Google: Dynamic Breadcrumb Trails Isn’t Spam

Having breadcrumbs on your site is good for usability and is also a good SEO check item to have on your internal pages. But what if your breadcrumb was defined based on user click behavior and not based on where the page might be situated on your web site. So for example, if you have a pair of sneakers on your site and someone clicks via the brand to get there and another clicks via size, the breadcrumb trail might be different depending on the click behavior.

Having different breadcrumb trails is not a form of cloaking or spam. It is just the way some sites are coded. Gary Illyes basically said that in his response to the question on Twitter:

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