United Airlines · Domain Security

United Airlines Domain Security

Domain security

Domain security posture for United Airlines, probed live across 3 host(s) and 2 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 0 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

AirlinesTravelFlight BookingNDCLoyaltyFortune 100

Transport & Host Security

www.united.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Dec 8 23:59:59 2026 GMT
united.business
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 1 03:51:17 2026 GMT
api.united.com
HTTPS: no · HSTS: no

Domain (DNS/Email) Security

united.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
united.business
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.united.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec  8 23:59:59 2026 GMT
  hsts: null
- host: united.business
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  1 03:51:17 2026 GMT
  hsts: false
- host: api.united.com
  https: false
domains:
- domain: united.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: united.business
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject