Check a page’s structured data
Paste a URL to see every JSON-LD block and microdata type on the page, catch blocks whose JSON does not parse, and check whether the entities answer engines rely on are present.
How this tool works, and what it cannot see
It extracts and pretty-prints each application/ld+json block, reports the types it declares, and lists itemtype microdata separately.
Invalid JSON is the single most common structured-data failure and it is silent: a crawler skips the block and reports nothing. This flags it with the parser error.
It checks presence, not eligibility for a rich result — Google’s Rich Results Test is the authority on that, and it is linked from your results.
FAQ
Which schema types matter most for AI search?
Organization (who is answering), FAQPage (the format most readily quoted), Article with dates and an author (attribution), and BreadcrumbList (hierarchy). Those four cover most of what an answer engine needs to cite you.
Does structured data improve rankings?
Not as a ranking factor. It changes how you are displayed and quoted, which changes clicks — and in AI answers it is often the difference between being cited and being paraphrased anonymously.
JSON-LD or microdata?
JSON-LD. It sits in one script tag, it survives redesigns because it is not woven into your markup, and it is what Google recommends.