ValidGraph is a structured-data validation and monitoring platform for websites. It analyses the JSON-LD published in a page’s HTML, checks it against Schema.org and Google’s structured-data requirements, identifies errors or missing properties, and provides suggested corrections.
Unlike tools that only determine whether individual markup fragments are technically valid, ValidGraph also builds an entity graph for the page or website. It evaluates whether entities such as organisations, people, products, articles and places are consistently identified and correctly connected through relationships such as author, publisher, brand, about and isPartOf.
Its main capabilities include:
- URL and raw JSON-LD validation.
- Completeness and site-health scoring.
- Rich-result eligibility checks.
- Detection of orphaned, disconnected or inconsistent entities.
- Monitoring of URLs over time, including change detection and alerts.
- AI discoverability analysis based on stable identifiers, semantic richness and entity relationships.
- Corrected JSON-LD suggestions for detected issues.
- Integrations with Google Search Console, webhooks, APIs and WordPress.
ValidGraph is CMS-independent: it can inspect structured data generated by WordPress, Shopify, Webflow or a headless frontend, provided that the JSON-LD is present in the HTML returned by the server. It is designed to help agencies, developers and SEO teams ensure that a website’s structured data is not merely valid but coherent, connected and useful to search engines and AI systems.