Stairwell · Domain Security

Stairwell Domain Security

Domain security

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

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Transport & Host Security

www.stairwell.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 2 20:51:11 2026 GMT
docs.stairwell.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 3 05:42:50 2026 GMT
app.stairwell.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 9 03:14:13 2026 GMT

Domain (DNS/Email) Security

stairwell.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

stairwell-domain-security.yml Raw ↑ 
generated: '2026-07-21'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.stairwell.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  2 20:51:11 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: docs.stairwell.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  3 05:42:50 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: app.stairwell.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  9 03:14:13 2026 GMT
  hsts: true
  hsts_max_age: 63072000
domains:
- domain: stairwell.com
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine