How to add breadcrumb schema on any website platform

Why this matters

Breadcrumbs on the page help a visitor orient; BreadcrumbList markup helps a machine understand your information architecture. That second thing has practical consequences — it is how a search engine works out that a page is a leaf of a section rather than a standalone document, and it is what produces the path shown under a result instead of a raw URL.

What you paste

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://example.com/" },
    { "@type": "ListItem", "position": 2, "name": "Support", "item": "https://example.com/support" },
    { "@type": "ListItem", "position": 3, "name": "Returns", "item": "https://example.com/support/returns" }
  ]
}
</script>

Positions start at 1 and must be contiguous. The final item is the current page; including its URL is fine and generally preferred.

Where it goes, by platform

The code is identical everywhere. The screen you paste it into is not, and neither is whether your plan allows it — 19 of 35 platforms require a paid plan for custom code.

How to check it worked

• Confirm the markup's trail matches the breadcrumb a visitor actually sees on the page.

• Validate with the Rich Results Test on a deep page rather than the homepage.

• Check that every item URL resolves with a 200 rather than a redirect.

What goes wrong

• Generating a trail that does not match the visible breadcrumb, or that does not match your URL structure.

• Using the same markup on every page because it is easier — the trail must be per-page to mean anything.

• Skipping levels, which makes the hierarchy look flatter than it is.

Questions

Do I need visible breadcrumbs too?

You should have them. Markup that describes navigation a visitor cannot see is exactly the mismatch guidelines warn about, and visible breadcrumbs are genuinely useful anyway.

What about pages with more than one parent?

Pick the canonical path and use it consistently. Multiple BreadcrumbList blocks are permitted but rarely worth the ambiguity they introduce.