When implementing structured data on a website, businesses often want to know whether their schema code is correct and whether a page is eligible for rich results on Google. Rich Results Test Schema Validator is a phrase people commonly use when researching these needs, but they actually correspond to two tools with different purposes and testing scopes.
This article compares Google Rich Results Test with Schema Markup Validator, clarifies the limitations of each tool, and explains how to use them together in a technical SEO workflow. One important note: do not assume both tools come from Google. Google provides Rich Results Test; Schema.org maintains Schema Markup Validator.
What is structured data, and why should you test it?
Structured data is information added to a webpage in a standardized format, usually JSON-LD, to describe its content more clearly to search engines. For example, schema can indicate that a page is an article, product, local business, recipe, or event, and describe attributes such as its name, price, author, or event time.

Correct schema markup helps search engines understand the context of your content. For certain data types and pages that meet Google’s policies, Google may show rich results, such as product details, FAQs, or event information. However, valid schema does not guarantee that Google will display a special search result. Google also considers the supported data type, content quality, implementation, and relevant policies.
Testing structured data is therefore about more than finding syntax errors. Businesses need to know whether the code follows the schema.org vocabulary, whether Google recognizes the data type, whether required fields are present, and whether the marked-up content matches what users can see on the page.
What does Google Rich Results Test check?
Rich Results Test is a Google tool focused on whether a page or code snippet is eligible for the types of rich results supported by Google. Users can enter a published URL or paste code to test it. When testing a URL, the tool also indicates whether Google could access and read the marked-up content during that test.

Strengths of Rich Results Test
- Directly connected to Google features: The tool shows which types of rich results Google can recognize from the data on a page.
- Identifies errors that affect eligibility: Results may flag missing required fields or invalid values for a specific rich result type.
- Useful for testing live pages: Testing a URL can uncover issues with access, resource loading, or the content Google can see.
Be sure to interpret results within the tool’s scope. If it reports valid data, that means the markup tested meets the relevant technical requirements for the corresponding result type; it does not guarantee that Google will show a rich result. Conversely, if a schema type is not supported for rich results, the tool may not evaluate it as a search feature, even though the schema can still be useful for describing content.
Rich Results Test is best when you want to check whether a page may be technically eligible for a specific Google Search feature. It does not replace checks of content, policies, performance, or indexing status reports in website management tools.
What is Schema Markup Validator used for?
Schema Markup Validator is a Schema.org tool, not a Google tool. It checks structured data against the schema.org vocabulary and helps identify the types of entities, properties, and relationships declared in the code. Depending on the available testing options, you can enter a URL or provide a code snippet.

Strengths of Schema Markup Validator
- Broad schema.org coverage: It can review many data types and properties in the schema.org vocabulary, including types that do not produce rich results on Google.
- Useful for structural checks: It helps identify syntax errors, inappropriate properties, or entity declarations that need review.
- Suitable for a range of purposes: Beyond SEO, structured data can also support information exchange between systems and platforms.
Keep in mind that Schema Markup Validator does not fully answer the question, “Will Google show a rich result for this page?” Markup that passes schema.org checks may still be missing fields required by Google, use a type Google does not support, or fail to meet display policies. So do not use this tool’s results as a substitute for testing specifically with Google.
Comparing the tools: which one should you use?
The right choice depends on what you want to check. If you need to know whether a page meets the technical requirements for a type of rich result on Google, start with Rich Results Test. If you want to review schema.org structure more broadly, including data types unrelated to Google rich results, use Schema Markup Validator.

- Primary purpose: Rich Results Test focuses on rich results supported by Google; Schema Markup Validator focuses on checking data against schema.org.
- Types of alerts: Google’s tool highlights errors affecting rich result eligibility; Schema.org’s validator helps review how types and properties are declared in the schema vocabulary.
- What a passing result means: Passing Rich Results Test does not guarantee display; passing Schema Markup Validator does not guarantee that Google considers a page eligible for display.
- Who uses them: SEO specialists often need Rich Results Test to optimize search features; developers and implementers may also need the validator to check the overall structure.
So the question is not necessarily which single tool to choose. In many projects, an effective approach is to check schema.org first to review the structure, then use Rich Results Test to confirm whether Google recognizes the specific feature. When you need to check both general validity and display eligibility, think of Rich Results Test Schema Validator as two complementary steps—not as interchangeable tools.
How to use both tools in an SEO workflow
To avoid making changes based on guesswork, businesses can follow a consistent process for each page template. For example, if a website has product pages, test a representative URL first, fix the implementation template, and then review the remaining pages. A basic workflow includes these steps:

- Define your goal: Choose the content type and search feature you want to support, such as an article, product, or event. Check Google’s current official documentation to see which types are supported.
- Check the schema.org structure: Use Schema Markup Validator to review whether entities and properties are declared appropriately. Pay attention to data types, value formats, and relationships between entities.
- Check Google’s requirements: Run the URL or code through Rich Results Test. Review the recognized result type, errors, warnings, and any missing required fields.
- Fix the source of the issue: Update the template, plugin, content management system, or JSON-LD code. Avoid editing URLs one by one if the same issue comes from a shared template.
- Test again after publishing: Rerun the tools on the live URL and confirm that the schema content matches what is displayed. Then monitor reports and search performance over time.
When you see a warning, distinguish it from an error that blocks eligibility. Not every warning needs immediate attention, but missing required fields or incorrect data may prevent a page from qualifying. Also, only mark up information that is real and visible to users; schema should not declare content that does not exist on the page.
Common mistakes when testing structured data
- Assuming valid data guarantees a rich result: The tools check technical requirements, but Google decides what to display.
- Using the wrong tool for the question: Schema.org’s validator does not fully confirm Google display eligibility; Rich Results Test is not intended to check every schema.org type.
- Testing only a code snippet and ignoring the live URL: Pasted code may be valid even if the published page is blocked, missing resources, or generating different content.
- Marking up information that does not match: Structured data must accurately reflect the content on the page. Do not add properties just to try to pass a test.
- Forgetting to test after updates: Changes to a theme, plugin, or system can cause schema to be duplicated, lose fields, or use the wrong format.
For large websites, make testing part of the development and release process rather than a one-time task. Keeping a record of sample URLs, resolved errors, and template versions helps marketing and technical teams track changes more clearly.
Conclusion
Rich Results Test and Schema Markup Validator solve different problems: one assesses whether data meets Google’s rich result requirements, while the other checks data against the schema.org vocabulary. Using both helps businesses review structure and check relevant display eligibility, but neither tool guarantees that Google will choose to show a rich result.
If your website needs structured data implementation, technical SEO optimization, or a review of its current website setup, LilyTech can help assess your needs and recommend a process aligned with your business goals. Contact LilyTech for clear, practical advice and solutions suited to your resources.
Đoàn Lê Minh Anh