Is this the same as Google’s Rich Results Test?

No. Google’s official tool runs in their environment and may differ. This validator uses transparent, on-device-friendly rules for common patterns and is meant for quick iteration alongside official tools.

Why does my custom @type show as unknown?

The built-in dictionary covers many common Schema.org types. Less common or newly added types may still be valid; confirm on schema.org and treat unknown-type messages as hints, not hard failures.

What does “Copy fixed JSON-LD” do?

It copies pretty-printed JSON from successfully parsed blocks and adds `"@context": "https://schema.org"` when missing — a starting point, not an automatic repair of all logic issues.

Schema SEO Validator (JSON-LD)

Validate embedded JSON-LD for syntax, Schema.org best practices, and common Google rich-result requirements — with clear fixes and an expandable tree.

Last Updated: 02 Feb 2026

Schema SEO Validator (JSON-LD)

Validate syntax, Schema.org shapes, and common Google rich-result requirements for Product, FAQ, Article, and Breadcrumb — with actionable fixes. Server fetches URLs safely (no external paid APIs).

Schema SEO Validator (JSON-LD) helps you validate embedded json-ld for syntax, schema.org best practices, and common google rich-result requirements — with clear fixes and an expandable tree. It is commonly used by SEO teams, content marketers, web publishers for json-ld validator, schema.org validator, structured data checker.

What This Validator Checks

Paste JSON-LD, raw HTML containing