Postman · Domain Security

Postman Domain Security

Domain security

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

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Transport & Host Security

www.postman.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 16 09:00:12 2026 GMT
api.getpostman.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 16 04:02:05 2026 GMT
learning.postman.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 29 23:17:28 2026 GMT

Domain (DNS/Email) Security

postman.com
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: yes
getpostman.com
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: yes

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.postman.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 16 09:00:12 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.getpostman.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 16 04:02:05 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: learning.postman.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 29 23:17:28 2026 GMT
  hsts: true
  hsts_max_age: 63072000
domains:
- domain: postman.com
  dnssec: false
  caa:
  - 0 issuewild "letsencrypt.org"
  - 0 issuewild "pki.goog; cansignhttpexchanges=yes"
  - 0 iodef "mailto:security@postman.com"
  - 0 issue "amazon.com"
  - 0 issue "digicert.com"
  - 0 issue "letsencrypt.org"
  spf: true
  dmarc: true
  dmarc_policy: quarantine
- domain: getpostman.com
  dnssec: false
  caa:
  - 0 issuewild "amazon.com"
  - 0 issuewild "digicert.com"
  - 0 issuewild "letsencrypt.org"
  - 0 issuewild "pki.goog; cansignhttpexchanges=yes"
  - 0 iodef "mailto:security@postman.com"
  - 0 issue "amazon.com"
  spf: true
  dmarc: true
  dmarc_policy: quarantine