aeo

How to fix: JSON-LD blocks parse without errors

Why this matters

AI engines silently drop JSON-LD blocks that fail to parse — no warning, no fallback, your structured data simply doesn't exist. Validating with https://validator.schema.org catches the syntax issues that turn a sophisticated schema strategy into nothing.

Background

AI engines silently drop JSON-LD blocks that fail to parse — no warning, no fallback, your structured data simply doesn't exist. The most sophisticated schema strategy is undone by a single missing comma. Validate every block before deploy.

References

Schema.org Validator · Google Rich Results Test

How to fix

Code snippet for each stack we cover. Pick the one matching your server / framework.

nginx

No server config — fix the JSON-LD source.

apache

Same.

cloudflare

Same.

wordpress

Install 'Schema & Structured Data for WP' plugin OR Yoast/RankMath — both validate before output. Audit any custom <script type="application/ld+json"> blocks injected by themes.

flask

Use a JSON-LD builder library (e.g., pyld) rather than f-string concatenation. Validate output in tests.

express

Use a typed JSON-LD library (e.g., schema-dts) for compile-time validation.

rails

Use the schema-org gem; it validates against the spec.

Verify it's working

https://validator.schema.org/ — must show 0 errors. https://search.google.com/test/rich-results — must show all detected items.

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