BT Group · Domain Security

Bt Com Domain Security

Domain security

Domain security posture for BT Group, probed live across 2 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=reject).

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Transport & Host Security

www.bt.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Mar 4 23:59:59 2027 GMT
developer.bt.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Feb 5 23:59:59 2027 GMT

Domain (DNS/Email) Security

bt.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=reject) · CAA: yes

Source

Domain Security

bt-com-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.bt.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Mar  4 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 31536000
- host: developer.bt.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Feb  5 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 31557600
domains:
- domain: bt.com
  dnssec: true
  caa:
  - ;; connection timed out; no servers could be reached
  spf: true
  dmarc: true
  dmarc_policy: reject