Testmail · Domain Security

Testmail App Domain Security

Domain security

Domain security posture for Testmail, probed live across 2 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=none).

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Transport & Host Security

testmail.app
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 1 01:11:14 2026 GMT
api.testmail.app
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 4 16:05:20 2026 GMT

Domain (DNS/Email) Security

testmail.app
DNSSEC: yes · SPF: yes · DMARC: yes (p=none) · 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: testmail.app
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  1 01:11:14 2026 GMT
  hsts: true
  hsts_max_age: 15552000
- host: api.testmail.app
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  4 16:05:20 2026 GMT
  hsts: null
domains:
- domain: testmail.app
  dnssec: true
  caa:
  - 0 issuewild "ssl.com"
  - 0 issue "comodoca.com"
  - 0 issue "digicert.com; cansignhttpexchanges=yes"
  - 0 issue "letsencrypt.org"
  - 0 issue "pki.goog; cansignhttpexchanges=yes"
  - 0 issue "ssl.com"
  spf: true
  dmarc: true
  dmarc_policy: none