5 items
Detect, validate & score schema.org structured data (JSON-LD, Microdata, RDFa). Find SEO gaps & rich-result eligibility. Schema Preview reveals the structured data behind any web page, checks it against best-practice rules, and shows exactly what's missing for rich results — no copying markup into an online tester. **What it does** - Detects JSON-LD, Microdata, and RDFa automatically, with a live count on the toolbar badge - Parses arrays and @graph, and resolves @id references between nodes - Completeness score (0–100) per schema, with required/recommended/optional coverage - Validation errors and warnings naming the exact missing fields - Google rich-result eligibility checks tied to Google's field requirements - Search-result (SERP) preview with stars and price - OpenGraph / Twitter Card / meta-tag overview - Reports JSON-LD syntax errors instead of failing silently - Deep links to schema.org and Google Search docs - Validates 47 common schema.org types; unknown types still shown - Filter, expand/collapse all, JSON viewer, copy and download - Dark and light themes; accessible, keyboard-navigable UI **Privacy first** Schema Preview is strictly read-only. It only reads markup already on the page, never modifies it, makes no network requests, and sends no data anywhere. No analytics, no tracking, no account.
Jun 21, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.