What each level requires
A valid record is published. Business claims remain self-asserted.
Required actions pass live probes and response validation. Probe history is published.
Required credentials pass independent checks and synthetic transactions succeed.
Continuous probing and current, independently checked trailing-90-day outcomes.
L1 is a described record with self-asserted business claims. L2–L4 require verifier-computed evidence. Publishing a number in JSON does not earn that level. A verifier also establishes domain control before endorsing a record.
Earned, then re-earned
Liveness evidence expires after 24 hours. License and insurance evidence expires on the authority's cadence or after 90 days, whichever comes first. Expired required evidence is excluded; the highest still-supported level is recomputed.
A failed required credential check or seven consecutive days of failed probes causes suspension. The endpoint remains visible with the reason and date, but leaves default ranking until re-verified.
Where are you today?
This checklist is a local planning aid. Checking boxes does not verify an endpoint or transmit an application.
Preflight and the conformance suite
The browser preflight checks structure, formats, required capability actions, and price ordering. The full suite — live probes, consented synthetic transactions, credential checks, and evidence freshness — is still planned. Preflight is not that suite.