generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.bts.gov
  https: true
  tls_version: TLSv1.3
  cert_expires: Jul 21 23:59:59 2026 GMT
  hsts: null
- host: data.bts.gov
  https: true
  tls_version: TLSv1.2
  cert_expires: Oct 15 18:23:49 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: www.transtats.bts.gov
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 15 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: bts.gov
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject