Breadcrumb / navigation schema

What is measured

This check declares no probe path, so the scanner walks the JSON-LD of the fetched homepage / for a BreadcrumbList and inspects itemListElement. Pass when the list has at least two entries typed ListItem whose position values start at 1 and increase by one, each with a name and an item that is a resolvable URL (an absolute http(s) URL or a host-relative path — a bare string such as garbage is not an item URL). The last entry may omit item entirely, as Google's breadcrumb guidance allows, because it stands for the current page. Partial when BreadcrumbList is present but an entry is not typed ListItem, a position is missing or out of order, an entry before the last has no resolvable item URL, or any entry carries an item that is not one; fail when no BreadcrumbList appears.

Reproduce it yourself

You do not have to take our word for any of this. Run the same measurement against your own domain:

              DOMAIN="https://example.com"
curl -sL "$DOMAIN/" | perl -0777 -ne 'while (m{<script[^>]*application/ld\+json[^>]*>(.*?)</script>}gsi) { print "$1\n" }' | jq -r '.. | objects | select((."@type"? | if type == "array" then .[] else . end) == "BreadcrumbList") | .itemListElement[] | [(.position|tostring), .name, ((.item."@id" // .item) // "NO URL")] | @tsv'
            

The fix

This is the artifact to ship. It is the complete change, not a description of one.

              <script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.example.com/" },
    { "@type": "ListItem", "position": 2, "name": "Checks", "item": "https://www.example.com/checks" },
    { "@type": "ListItem", "position": 3, "name": "Structured data", "item": "https://www.example.com/checks/jsonld" }
  ]
}
</script>
            

Standards referenced

• schema.org/BreadcrumbList

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