Script Checks JSON-LD Consistency Across Multilingual Site Versions

Multilingual websites often let structured data drift between language versions, such as differing phone numbers or missing addresses. Search engines and AI assistants may read these mismatches as conflicting facts about the same organisation. The article presents a short Python script that fetches JSON-LD from English, Chinese, and Japanese pages and compares core fields like url, logo, telephone, email, and sameAs. Fields such as description are expected to vary and are excluded from the comparison. The author suggests running the check in CI after deploys or weekly via cron, and notes common issues like inconsistent phone formats, stale social links, dropped script tags, and invalid JSON.