The free checkout test. Test your checkout: Add a 100% off code and our agent buys your plan with it. A short private drive of your product's pay step: our agent signs up, buys your plan with the code (or in your checkout's test mode), uses one paid feature, cancels and deletes the account. Free for a product you've proved yours; one you've added but not proved counts with the free checks (429 rate_limited, scan_budget_reached), and its report opens once it's proved. One at a time per domain, its subdomains included (409 check_running), 2 per domain every 30 days (429 rate_limited with next_at), and a ceiling on all pay checks a day (429 rate_limited). 403 not_your_product: add the domain first (POST /api/claims); 403 claim_not_verified: a login (kind sandbox) needs the product proved yours, a code doesn't