Upsun · Domain Security

Upsun Domain Security

Domain security

Domain security posture for Upsun, 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

upsun.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 3 03:29:55 2026 GMT
developer.upsun.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 11 13:16:30 2026 GMT
api.upsun.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 13 07:18:51 2026 GMT

Domain (DNS/Email) Security

upsun.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=quarantine) · 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: upsun.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  3 03:29:55 2026 GMT
  hsts: true
  hsts_max_age: 31557600
- host: developer.upsun.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 11 13:16:30 2026 GMT
  hsts: true
  hsts_max_age: 63072000
- host: api.upsun.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 13 07:18:51 2026 GMT
  hsts: true
  hsts_max_age: 63072000
domains:
- domain: upsun.com
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine