generated: '2026-07-11' method: probed source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts hosts: - host: api.hackerone.com https: true tls_version: TLSv1.3 cert_expires: Mar 22 23:59:59 2027 GMT hsts: true hsts_max_age: 31536000 domains: - domain: hackerone.com dnssec: true caa: - 0 iodef "mailto:caa-reports@hackerone.com" - 0 issue "amazonaws.com" - 0 issue "digicert.com" - 0 issue "letsencrypt.org" - 0 issuewild ";" spf: true dmarc: true dmarc_policy: reject