Yorkshire Building Society · Domain Security

Yorkshire Building Society Domain Security

Domain security

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

Financial ServicesBankingBuilding SocietyOpen BankingPSD2OBIEFAPIUnited KingdomPaymentsAccount InformationFintech

Transport & Host Security

www.ybs.co.uk
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Feb 28 23:59:59 2027 GMT
developers.ybs.co.uk
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 13 13:55:54 2026 GMT
ob-ybs.api.ybs.co.uk
HTTPS: yes · HSTS: no

Domain (DNS/Email) Security

ybs.co.uk
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-23'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.ybs.co.uk
  https: true
  tls_version: TLSv1.3
  cert_expires: Feb 28 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 31536000
- host: developers.ybs.co.uk
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 13 13:55:54 2026 GMT
  hsts: true
  hsts_max_age: 31557600
- host: ob-ybs.api.ybs.co.uk
  https: true
  tls_cert_error: '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate
    in certificate chain (_ssl.c:1082)'
  hsts: null
domains:
- domain: ybs.co.uk
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject