Google Rich Results Test vs Schema.dev (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 Schema.dev if

• Fits if you mark up a handful of pages and can paste JSON-LD into your CMS
• Works for checking what structured data a page already has

Look elsewhere if

• Skip it if you don't use Chrome, as it's a Chrome extension only
• Too light for whole sites, as markup is built page by page and the Deployer isn't out
• Watch out: the extension's latest version, 0.80.1, is from March 2025, and the site's newest blog posts are from 2020
• Tight if you want the Schema Tester or its API, which sit in a beta behind a sign-up
• Not for you if you want the markup added for you, as you copy and paste it yourself

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.

Schema.dev

• It works only as a Chrome extension; there is no plugin that adds the markup to your site for you.
• The Schema Tester and its API are a beta behind a sign-up, and the Schema Deployer is still marked as coming soon.
• The extension's latest version, 0.80.1, dates from March 2025, and the site's newest blog posts are from 2020.
• Markup is built page by page; templates that cover many pages at once are planned for the unreleased Deployer.

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.

Schema.dev

Point-and-click builder

A step-by-step form for each schema type, filled by clicking elements on the page or typing, with text transformations and custom values.

Dozens of schema types

Covers the types Google supports for rich results and more; the March 2025 update added vehicle listing markup.

Required and recommended fields

Guides you through the required, recommended and optional properties for each type, so less schema knowledge is needed.

Detection and testing

Finds structured data already on a page and tests generated markup, showing errors and warnings.

JSON-LD output

Produces formatted JSON-LD that you copy and paste into the page or your CMS.

Google Rich Results Test

• Free$0

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

Schema.dev

• Free$0

  The Schema Builder extension for Chrome with built-in testing, plus the Schema Tester beta.