Structured Data Testing Tool
In one sentence
Google's tool for checking whether a page's structured data is valid and eligible.
Analogy Mental model
A practice exam before the real one. It tells you whether the answers are in the format the marker expects.
In practice What you actually do
Paste a URL or a code fragment, then read errors before warnings, because errors disqualify the enhancement and warnings usually do not. Test the rendered page rather than the template source, since markup can be injected and lost.
Where people get burned Pitfalls
Validation is a syntax check rather than a guarantee. A page can pass and still never show the enhancement, because eligibility also depends on the query and on how far the site is trusted.
This entry was written in English from the Chinese original, not machine-translated. Read the Chinese version →