Steno · Domain Security

Steno Domain Security

Domain security

Domain security posture for Steno, probed live across 6 host(s) and 1 registrable domain(s). 6 host(s) serve HTTPS (up to TLSv1.3); 6 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=quarantine).

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Transport & Host Security

steno.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 24 10:33:43 2026 GMT
help.steno.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 15 11:18:08 2026 GMT
api.steno.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 24 10:33:43 2026 GMT
brief.steno.com
HTTPS: yes · HSTS: yes
status.steno.com
HTTPS: yes · HSTS: yes
trust.steno.com
HTTPS: yes · HSTS: yes

Domain (DNS/Email) Security

steno.com
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

steno-domain-security.yml Raw ↑ 
generated: '2026-08-05'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: steno.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 24 10:33:43 2026 GMT
  hsts: true
  hsts_max_age: 31557600
- host: help.steno.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 15 11:18:08 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.steno.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 24 10:33:43 2026 GMT
  hsts: true
  hsts_max_age: 31557600
  note: 'automated probe first recorded hsts null; re-probed by hand three times (curl
    -I and curl -X HEAD) and the header is present on the 403 response as strict-transport-security:
    max-age=31557600'
- host: brief.steno.com
  https: true
  hsts: true
  hsts_max_age: 31536000
- host: status.steno.com
  https: true
  hsts: true
  hsts_max_age: 31536000
  hsts_include_subdomains: true
  hsts_preload: true
- host: trust.steno.com
  https: true
  hsts: true
  hsts_max_age: 31536000
  hsts_include_subdomains: true
domains:
- domain: steno.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine
x-evidence:
  fetched: '2026-08-05'
  tool: 0-working/probe-domain-security.py, plus a manual curl re-probe of api.steno.com
    and the three subdomains the script did not carry