Royal Mail · Domain Security

Royal Mail Domain Security

Domain security

Domain security posture for Royal Mail, probed live across 3 host(s) and 2 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.2); 2 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=none).

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Transport & Host Security

developer.royalmail.net
HTTPS: yes · TLS: TLSv1.2 · HSTS: yes · cert expires: Nov 27 23:59:59 2026 GMT
api.royalmail.net
HTTPS: yes · TLS: TLSv1.2 · HSTS: no · cert expires: Nov 27 23:59:59 2026 GMT
help.parcel.royalmail.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 20 23:44:09 2026 GMT

Domain (DNS/Email) Security

royalmail.net
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · CAA: none
royalmail.com
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: developer.royalmail.net
  https: true
  tls_version: TLSv1.2
  cert_expires: Nov 27 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.royalmail.net
  https: true
  tls_version: TLSv1.2
  cert_expires: Nov 27 23:59:59 2026 GMT
  hsts: null
- host: help.parcel.royalmail.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 20 23:44:09 2026 GMT
  hsts: true
  hsts_max_age: 259200
domains:
- domain: royalmail.net
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none
- domain: royalmail.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject