Duffel · Domain Security

Duffel Domain Security

Domain security

Domain security posture for Duffel, probed live across 2 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=reject).

TravelFlightsHotelsBookingPayments

Transport & Host Security

duffel.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 29 11:00:00 2026 GMT
api.duffel.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 2 13:32:30 2026 GMT

Domain (DNS/Email) Security

duffel.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=reject) · 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: duffel.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 29 11:00:00 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.duffel.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  2 13:32:30 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: duffel.com
  dnssec: true
  caa:
  - 0 issuewild "digicert.com; cansignhttpexchanges=yes"
  - 0 issuewild "letsencrypt.org"
  - 0 issuewild "pki.goog; cansignhttpexchanges=yes"
  - 0 issuewild "sectigo.com"
  - 0 issuewild "ssl.com"
  - 0 iodef "mailto:security@duffel.com"
  spf: true
  dmarc: true
  dmarc_policy: reject