Google Rich Results Test vs SEOMarkup Schema Inspector (2026): which should you pick?

Pick Google Rich Results Test if

• Fits if you're checking structured data before a page goes live
• Works for finding out why a rich result stopped showing for a page

Look elsewhere if

• Skip it if you need general schema.org checks, as it only knows Google's rich result types
• Not for you if the page is behind a login, firewall or robots.txt block, unless you paste the code or use a tunnel
• Watch out: passing the test doesn't mean Google will show the rich result, as it picks layouts per search
• Watch out: shared links and saved history last about 90 days, and anyone with the link can open them

Pick SEOMarkup Schema Inspector if

• Fits if you debug structured data before a release and want to read it as a tree
• Works for seeing which schema types a competitor's page uses

Look elsewhere if

• Skip it if the page uses Microdata or RDFa, which are only flagged, not shown
• Too light for validation on its own, as that means opening Google's or Schema.org's tester
• Not for you if you use Firefox or Safari, as it runs in Chromium browsers only
• Watch out: the developer hasn't identified itself as a trader, so EU consumer rights don't apply

Google Rich Results Test

• Checks only the rich result types Google Search supports; Google points to the Schema Markup Validator for general schema.org checks.
• Pages behind a firewall or login, or blocked by robots.txt, cannot be tested by URL; you need a tunnel or a code snippet.
• A passing test does not guarantee a rich result: Google says it chooses result layouts per search.
• Shared results links and saved test history last only about 90 days, and anyone with a bookmark can open it.

SEOMarkup Schema Inspector

• Microdata and RDFa are only detected and labelled, not displayed; full parsing covers JSON-LD.
• Validation happens by opening Google's Rich Results Test or validator.schema.org, not inside the extension.
• It is listed for Chrome, and the vendor says it works in other Chromium-based browsers; there is no Firefox or Safari version named.
• The Chrome Web Store notes the developer has not identified itself as a trader, so EU consumer rights do not apply.

Google Rich Results Test

Test a URL or a code snippet

Enter a public URL, or paste code and edit and rerun it as often as needed; JSON-LD, RDFa and Microdata are supported.

Rich result detection

Lists the rich result types found, such as Article, Breadcrumb, Event, Job posting, Product snippet, Recipe and Review snippet, with each item's errors and warnings.

Crawl checks

Reports whether Google could crawl and fetch the page, whether robots.txt allows it, and which page resources failed to load.

Search result preview

For some rich result types, shows how the result might look in Google Search on desktop and mobile.

Code explorer

Clicking an error opens the rendered source at the line in question.

Shareable results and history

Share a results link that anyone can open, and bookmark runs to keep a test history, each kept for about 90 days.

SEOMarkup Schema Inspector

JSON-LD tree view

Parses every JSON-LD script block, splits @graph arrays into separate schemas and shows each as an expandable tree.

Full-text search

Search for a property name, value or URL across all schemas on the page, with next and previous match buttons.

Copy, download, validate

Copy a schema as raw JSON or a ready-to-paste script tag, download it as a .json file, or open the page in Google's Rich Results Test or validator.schema.org.

Parse error banners

When a JSON-LD block is malformed, a banner shows which block broke and why.

Microdata and RDFa detection

Flags when a page also uses Microdata or RDFa, though only JSON-LD is shown in full.

Schema.org links

Click any schema type to open its documentation on Schema.org.

Google Rich Results Test

• Free$0

  URL and code tests for JSON-LD, RDFa and Microdata, smartphone or desktop crawler, previews and shareable results.

SEOMarkup Schema Inspector

• Free$0

  Every feature of the extension, free from the Chrome Web Store with no account.