Discovery and meaning
Confirm HTTPS, canonical URLs, indexability, a current sitemap, deliberate crawler rules, one clear H1, descriptive metadata, semantic HTML, structured identity, support, and canonical documentation links.
Callable services
If the site exposes operations, publish a valid OpenAPI document or an MCP interface with strict schemas. Document inputs, outputs, auth, errors, limits, side effects, and idempotency.
Verification
Test every advertised asset at its exact URL. Compare claims and prices across visible pages and machine files. Record skipped and not-applicable checks, then prioritize high-confidence fixes before adding new surface area.