Tessian · Domain Security

Tessian Domain Security

Domain security

Domain security posture for Tessian, 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=reject).

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Transport & Host Security

www.tessian.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Nov 26 23:59:59 2026 GMT
your-domain.tessian-platform.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Nov 26 23:59:59 2026 GMT
your-domain.tessian-app.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Jan 22 23:59:59 2027 GMT

Domain (DNS/Email) Security

tessian.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: yes
tessian-platform.com
DNSSEC: no · SPF: no · DMARC: yes (p=none) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-21'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.tessian.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Nov 26 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: your-domain.tessian-platform.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Nov 26 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 7776000
- host: your-domain.tessian-app.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 22 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 7776000
domains:
- domain: tessian.com
  dnssec: false
  caa:
  - 0 issue "sectigo.com"
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: tessian-platform.com
  dnssec: false
  caa: []
  spf: false
  dmarc: true
  dmarc_policy: none