Tsinghua University · Domain Security

Tsinghua Domain Security

Domain security

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

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Transport & Host Security

www.tsinghua.edu.cn
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 11 15:05:35 2026 GMT
mirrors.tuna.tsinghua.edu.cn
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Jul 13 14:15:41 2026 GMT

Domain (DNS/Email) Security

tsinghua.edu.cn
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.tsinghua.edu.cn
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 11 15:05:35 2026 GMT
  hsts: false
- host: mirrors.tuna.tsinghua.edu.cn
  https: true
  tls_version: TLSv1.3
  cert_expires: Jul 13 14:15:41 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: tsinghua.edu.cn
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine