Google's John Mueller said when it comes to breadcrumbs, the links you see on pages that tell you where you clicked from, the placement and location of those breadcrumbs don't really matter for SEO. John said "no, the placement doesn't matter for SEO. We use breadcrumbs for crawling (finding internal links) & for rich results (structured data); both don't depend on placement of the breadcrumbs."...
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Google: Breadcrumb Placement Does Not Matter For SEO
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