How to troubleshoot the issue where Schema markup is not recognized by search engines?
When Schema markup is not recognized by search engines, issues can be排查 through steps such as tool verification, code inspection, and content matching. First, use tools like Google Rich Results Test or Schema Markup Validator to detect syntax errors, such as missing required properties (e.g., "headline" and "datePublished" for Article), JSON format errors (e.g., unmatched brackets), etc. Second, check if the Schema code (JSON-LD is recommended as a priority) is correctly embedded in the page's <head> or <body>, avoid placing it in areas that require JavaScript dynamic loading, and ensure that search engine crawlers can directly crawl it. Third, confirm that the Schema type (e.g., Product, Event) is consistent with the actual content of the page; for example, misusing the Article type on a product page will lead to recognition failure. In addition, check the "Rich Results" report in Google Search Console to obtain specific error prompts (e.g., "incomplete data", "unsupported type"). It is recommended to first verify and fix syntax issues through official tools, ensure that Schema data corresponds one-to-one with the main content of the page, and if the problem persists, check if robots.txt restricts crawling or try statically embedding key data.
