Tandem Bank · Domain Security

Tandem Bank Domain Security

Domain security

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

Financial ServicesBankingOpen BankingPSD2OBIEFAPIUnited KingdomPaymentsAccount InformationChallenger BankFintech

Transport & Host Security

www.tandem.co.uk
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 18 20:48:12 2026 GMT
developer.token.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Dec 31 23:59:59 2026 GMT

Domain (DNS/Email) Security

tandem.co.uk
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none
token.io
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: yes

Source

Domain Security

Raw ↑ 
generated: '2026-07-23'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.tandem.co.uk
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 18 20:48:12 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: developer.token.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec 31 23:59:59 2026 GMT
  hsts: null
domains:
- domain: tandem.co.uk
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine
- domain: token.io
  dnssec: false
  caa:
  - 0 issuewild "amazon.com"
  - 0 issuewild "letsencrypt.org"
  - 0 issuewild "sectigo.com"
  - 0 iodef "mailto:security@token.io"
  - 0 issue "amazon.com"
  - 0 issue "letsencrypt.org"
  spf: true
  dmarc: true
  dmarc_policy: quarantine