Cisco Umbrella · Domain Security

Cisco Umbrella Domain Security

Domain security

Domain security posture for Cisco Umbrella, probed live across 3 host(s) and 2 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

umbrella.cisco.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Feb 9 15:22:52 2027 GMT
developer.cisco.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Feb 20 00:05:07 2027 GMT
api.umbrella.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Nov 9 20:43:44 2026 GMT

Domain (DNS/Email) Security

cisco.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: yes
umbrella.com
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · 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: umbrella.cisco.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Feb  9 15:22:52 2027 GMT
  hsts: false
- 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.umbrella.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Nov  9 20:43:44 2026 GMT
  hsts: null
domains:
- domain: cisco.com
  dnssec: false
  caa:
  - 0 issue "letsencrypt.org"
  - 0 issue "ssl.com"
  - 0 issue "identrust.com"
  - 128 iodef "mailto:infosec@cisco.com"
  - 128 issuewild "digicert.com"
  - 0 issue "pki.goog"
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: umbrella.com
  dnssec: false
  caa:
  - 0 issue "letsencrypt.org"
  - 0 issue "quovadisglobal.com"
  - 0 issue "amazon.com"
  - 0 issue "amazonaws.com"
  - 0 issue "amazontrust.com"
  - 0 issue "awstrust.com"
  spf: true
  dmarc: true
  dmarc_policy: none