generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: earthquake.usgs.gov
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 10 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.waterdata.usgs.gov
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 15 21:20:52 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: www.sciencebase.gov
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 22 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: usgs.gov
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: sciencebase.gov
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject