Cisco Secure Firewall · Domain Security

Cisco Secure Firewall Domain Security

Domain security

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

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Transport & Host Security

developer.cisco.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Feb 20 00:05:07 2027 GMT
api.us.security.cisco.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Nov 7 23:59:59 2026 GMT
api.eu.security.cisco.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Jan 4 23:59:59 2027 GMT

Domain (DNS/Email) Security

cisco.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: yes

Source

Domain Security

Raw ↑ 
generated: '2026-08-19'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: developer.cisco.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Feb 20 00:05:07 2027 GMT
  hsts: true
  hsts_max_age: 15552000
- host: api.us.security.cisco.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Nov  7 23:59:59 2026 GMT
  hsts: null
- host: api.eu.security.cisco.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan  4 23:59:59 2027 GMT
  hsts: null
domains:
- domain: cisco.com
  dnssec: false
  caa:
  - 0 issue "globalsign.com"
  - 0 issue "letsencrypt.org"
  - 128 issuewild "identrust.com"
  - 0 issue "pki.goog"
  - 0 issue "digicert.com"
  - 128 iodef "mailto:infosec@cisco.com"
  spf: true
  dmarc: true
  dmarc_policy: reject