Checks / Titles, headings and schema
No structured data (schema)
JSON-LD tells assistants exactly what the page is: organisation, product, FAQ, article.
schema_missing · Titles, headings and schema · Warning
What to change
Add JSON-LD that matches the page.
How common it is
On a sample, the study measured homepages with no JSON-LD: 156 of 293 Show HN sites (53%), and 51 of 66 Lovable sites (77%).
Fetched 20 and 21 Oct 2026 as CitedBot, robots.txt obeyed, no JavaScript. Study: Launch crawl 2026-10 (English).
About this check
| Check ID | schema_missing |
|---|---|
| Report section | Titles, headings and schema |
| Severity | Warning |
| How it is decided | Measured: read directly from the page or the server's response. |
| Added | Before 19 Oct 2026 (versions 1 and 2), or a site-wide check with no version date yet |
| Status | Measured in every report |
| Report gives the code | Yes, for each affected page |
Related checks
- Structured data does not parse
- Organization schema has broken links
- Home page has no Organization schema
- Product page without Product schema
- Structured data Google detects but rejects
- Article without Article schema
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