Citadel Securities · Domain Security

Citadel Securities Domain Security

Domain security

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

CompanyFintechFinancial ServicesMarket MakerElectronic TradingLiquidityCapital Markets

Transport & Host Security

www.citadelsecurities.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 3 03:26:22 2026 GMT

Domain (DNS/Email) Security

citadelsecurities.com
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

citadel-securities-domain-security.yml Raw ↑ 
generated: '2026-07-18'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.citadelsecurities.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  3 03:26:22 2026 GMT
  hsts: true
  hsts_max_age: 15552000
domains:
- domain: citadelsecurities.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine