Check what JSON-LD schema is actually live on a page, and validate it.
The Structured Data Validator is a free tool that scans a live webpage and extracts every JSON-LD schema block, then checks it for missing required fields. This is particularly useful for developers, SEO specialists, and data analysts who need to ensure their schema is accurate and complete. By using this tool, you can avoid costly mistakes and ensure that your structured data is correctly formatted for search engines and other platforms. With the Structured Data Validator, you can quickly identify and fix schema errors, and improve your website's visibility and credibility online. The tool provides a clear and detailed report of all schema blocks found on the page, along with a list of missing required fields. This allows you to easily identify and address any issues, and make data-driven decisions to improve your website's performance.
The tool uses a combination of JavaScript and HTML parsing to extract all JSON-LD schema blocks from the webpage, and stores them in an internal data structure for further processing.
The tool checks each schema block for missing required fields and validates the JSON-LD code against a set of predefined rules and schema types.
If any errors or missing required fields are found, the tool generates a detailed report that includes the raw JSON-LD code and any error messages or warnings.
The tool outputs a list of all schema blocks found on the page, along with any errors or warnings that were detected during validation.
Ensure accurate and complete schema for search engines and platforms
Catch errors early in the development process
Improve website visibility and credibility online
Reduce costs associated with schema mistakes
Make data-driven decisions to improve website performance
The Meta Tags Analyzer and Structured Data Validator pair well together because they both provide insight into a webpage's metadata and schema, allowing developers to gain a comprehensive understanding of their website's visibility and credibility online.
Need more depth? Try Full SEO Audit →
The tool uses a combination of JavaScript and HTML parsing to extract all JSON-LD schema blocks from the webpage, then checks each block for missing required fields. This process is done on the client-side, without requiring any server-side access or API keys.
Yes, the tool is designed to handle dynamically generated pages and can extract schema blocks from pages that are loaded via JavaScript. However, if the schema is generated dynamically and not loaded until after the initial page load, the tool may not be able to extract it.
If a schema block is reported as 'invalid', it means that the tool was unable to parse the JSON-LD code correctly, or that the schema contains an error. You can view the raw JSON-LD code output by the tool to see the exact error message and diagnose the issue.
You can use the tool as a part of your CI/CD pipeline by integrating it with a script or task runner that can simulate a browser environment and execute the tool on your webpage. This allows you to automate schema validation and catch errors early in the development process.
No, the tool is designed for validation and does not provide a schema code generator. However, you can use the tool to identify missing required fields and then manually generate the correct schema code using a separate tool or library.