DeepSeek · Domain Security

Deepseek Domain Security

Domain security

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

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Transport & Host Security

www.deepseek.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Dec 25 23:59:59 2026 GMT
api-docs.deepseek.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 28 23:59:59 2026 GMT
api.deepseek.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Dec 25 23:59:59 2026 GMT

Domain (DNS/Email) Security

deepseek.com
DNSSEC: no · 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.deepseek.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec 25 23:59:59 2026 GMT
  hsts: false
- host: api-docs.deepseek.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 28 23:59:59 2026 GMT
  hsts: false
- host: api.deepseek.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec 25 23:59:59 2026 GMT
  hsts: null
domains:
- domain: deepseek.com
  dnssec: false
  caa:
  - d3bbv8sr76az5s.cloudfront.net.
  spf: true
  dmarc: true
  dmarc_policy: quarantine