Comparison
Ahrefs is a comprehensive SEO platform. Its site audit catches obvious schema errors. But for teams who need to go deep on structured data — with property-level fix suggestions, rich result eligibility, and real-time validation — SchemaCheck is purpose-built for this.
| Feature | SchemaCheck | Ahrefs Site Audit |
|---|---|---|
Schema-specific validation SchemaCheck validates per Google's rich result rules. Ahrefs catches obvious errors. | ✓ Deep | ✓ Surface-level |
Rich result eligibility SchemaCheck checks whether each schema type meets Google's eligibility requirements. | ✓ | — |
Fix suggestions SchemaCheck provides specific fixes per property. Ahrefs flags issues without guidance. | ✓ Property-level | — |
REST API SchemaCheck exposes a REST API for automation. Ahrefs has no schema validation API. | ✓ | — |
Validate before deploy SchemaCheck works in CI pipelines and accepts raw JSON-LD before pages are live. | ✓ | — |
Continuous URL monitoring SchemaCheck monitors continuously. Ahrefs re-crawls on a schedule. | ✓ | ✓ (periodic crawl) |
35+ schema types SchemaCheck covers Google's full set of rich result types. Ahrefs covers common ones. | ✓ | Partial |
Deprecation warnings SchemaCheck flags deprecated types like HowTo and restricted FAQPage. | ✓ | — |
No-code web checker SchemaCheck has a no-code interface. Ahrefs schema data requires an account and crawl. | ✓ | — |
Full SEO platform Ahrefs covers backlinks, keywords, rank tracking, and site audits. | — | ✓ |
Free tier SchemaCheck free tier covers 100 validations/month. Ahrefs is paid-only. | ✓ | — |
Ahrefs audits schema as one signal among hundreds — it surfaces errors but doesn't go deep. SchemaCheck validates against Google's specific rich result requirements for each of 35+ schema types, flags deprecated patterns, and checks property-level compliance. You get the kind of detail you'd otherwise have to cross-reference manually against Google's developer documentation.
When Ahrefs flags a schema issue, it tells you there's a problem. SchemaCheck tells you exactly which property is missing or incorrect, what value is expected, and links you directly to the relevant Google documentation. For teams managing schema at scale, the difference between “something is wrong” and “here's exactly what to fix” is hours of developer time.
Ahrefs exposes an API for rank tracking and backlink data, but not for schema validation. SchemaCheck's REST API is built for exactly this: validate a URL or raw JSON-LD, get a structured JSON response, integrate into CI/CD, and automate audits across thousands of pages. No browser, no manual steps.
Use Ahrefs when:
Use SchemaCheck when:
35+ schema types. Rich result eligibility. Property-level fix suggestions. API key in under a minute.