Score · v0
Score your v0 site
26 checks. One grade. Built on v0? See how close you are to a published design contract.
v0 generates production React. The Designesy engine runs the same 26 checks against any v0-built URL and returns an honest grade — pass, fail, warn, or skip — against tokens, motion, typography, accessibility, and identity rules. The example below is prefilled with v0.dev, which currently scores B with 2 failures and 5 warnings.
v0 currently scores B · 80.4 on the contract. Score your own v0 site below — the engine runs the same 26 checks against your URL.
Legitimacy Audit Engine
Enter any public website URL above — no https:// needed. We fetch its CSS, extract design tokens, and evaluate 32 verification checks against the Designesy contract v0.3.0. Real-time. No login required.
What you get
The output
A letter grade, a per-check breakdown (pass, fail, warn, skip), the tokens extracted from your site’s :root, and a copyable receipt citing the contract version. No login. No backend. No data kept. The score is the artifact.
The contract the engine runs against is public at /contracts/design-system. The category it defines is explained at /learn/what-is-design-verification.