{"resource":"https://api.x-402.online/v1/domain/health","service":null,"areas":["other"],"answering":true,"http_status":402,"latency_ms":121,"price_usdc":0.005,"buyers_30d":3,"calls_30d":3,"description":"Check whether a domain is reachable and healthy: DNS, certificate, redirects, security headers. One call on a domain: A, AAAA, NS, MX and SPF records; the TLS certificate with issuer, expiry and days left; the HTTP redirect chain hop by hop","id":"86b3504eec00","category":"DNS and domains","checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/86b3504eec00"}