Hopper · Domain Security

Hopper Com Domain Security

Domain security

Domain security posture for Hopper, probed live across 2 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 0 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=quarantine).

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Transport & Host Security

www.hopper.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Aug 24 06:23:20 2026 GMT
airlines-api.hopper.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 9 12:02:16 2026 GMT

Domain (DNS/Email) Security

hopper.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=quarantine) · 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: www.hopper.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 24 06:23:20 2026 GMT
  hsts: null
- host: airlines-api.hopper.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  9 12:02:16 2026 GMT
  hsts: null
domains:
- domain: hopper.com
  dnssec: true
  caa:
  - 0 issue "pki.goog"
  - 0 iodef "mailto:caa-alerts@hopper.com"
  - 0 issue "amazonaws.com"
  - 0 issue "letsencrypt.org"
  - 0 issue "entrust.net"
  spf: true
  dmarc: true
  dmarc_policy: quarantine