generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.berkshirehathaway.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 11 23:53:04 2026 GMT
  hsts: false
- host: www.bnsf.com
  https: true
  tls_version: TLSv1.2
  cert_expires: Sep 14 19:46:14 2026 GMT
  hsts: false
domains:
- domain: berkshirehathaway.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: bnsf.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine