How it works
Breadcrumbs show a page’s position in the information hierarchy, such as Home, Glossary, then the current term. They help a visitor move to a broader level without relying on browser history. A meaningful hierarchy follows content relationships, not necessarily every technical folder in a URL.
A realistic example
A reader arriving directly from search at a glossary term can use the glossary breadcrumb to find neighbouring concepts. A location detail page can return to the service-area overview. Each language must lead to its own equivalent parent, not silently to an English index.
What to check
Check that parent links work, the current page is clearly identified and the labels match the visible hierarchy. Keep the trail usable on narrow screens. If BreadcrumbList markup is supplied, compare its names and positions with the visible links and actual canonical addresses.
Limits and next steps
Do not invent a hierarchy merely to add keywords. Breadcrumbs complement menus and related links; they do not replace them. Structured markup is optional enhancement and does not guarantee a special search display. Use one consistent metadata owner to avoid contradictory trails.