The breadcrumb checker checks the bread crumbs shown per page. Bread crumbs can be implemented in multiple ways (with and without rich snippets, rich snippets through microdata, JSON-LD, etc.). This tool tries to find out the bread crumbs as many as possible and then show it. The bread crumbs are very important in terms of internal link structure within SEO. For users, a bread crumb is sometimes based on a session, this tool checks without a session (so in the same way as Google). In this way it becomes clear whether the internal link structure has been correctly set up via the breadcrumbs.