Tongdun · Domain Security

Tongdun Domain Security

Domain security

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

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Transport & Host Security

tongdun.cn
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 15 07:31:06 2026 GMT

Domain (DNS/Email) Security

tongdun.cn
DNSSEC: yes · SPF: yes · DMARC: no · CAA: yes

Source

Domain Security

tongdun-domain-security.yml Raw ↑ 
generated: '2026-07-21'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: tongdun.cn
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 15 07:31:06 2026 GMT
  hsts: false
domains:
- domain: tongdun.cn
  dnssec: true
  caa:
  - www.tongdun.cn.
  spf: true
  dmarc: false