PromptArmor · Domain Security

Prompt Armor Domain Security

Domain security

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

AILLMSecurityPrompt InjectionThreat Detection

Transport & Host Security

www.promptarmor.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 19 19:15:36 2026 GMT
promptarmor.readme.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 9 13:12:37 2026 GMT
api.promptarmor.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 3 19:59:36 2026 GMT

Domain (DNS/Email) Security

promptarmor.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
readme.io
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.promptarmor.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 19 19:15:36 2026 GMT
  hsts: true
  hsts_max_age: 63072000
- host: promptarmor.readme.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  9 13:12:37 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.promptarmor.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  3 19:59:36 2026 GMT
  hsts: null
domains:
- domain: promptarmor.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: readme.io
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine