酷学院 (Cool College) · Domain Security

Coolcollege Domain Security

Domain security

Domain security posture for 酷学院 (Cool College), probed live across 1 host(s) and 1 registrable domain(s). 1 host(s) serve HTTPS (up to TLSv1.2); 0 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC absent.

CompanyCorporate TrainingE-LearningTalent DevelopmentHuman ResourcesSaaSLearning ManagementChina

Transport & Host Security

coolcollege.cn
HTTPS: yes · TLS: TLSv1.2 · HSTS: no · cert expires: Sep 20 23:59:59 2026 GMT

Domain (DNS/Email) Security

coolcollege.cn
DNSSEC: no · SPF: yes · DMARC: no · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-18'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: coolcollege.cn
  https: true
  tls_version: TLSv1.2
  cert_expires: Sep 20 23:59:59 2026 GMT
  hsts: false
domains:
- domain: coolcollege.cn
  dnssec: false
  caa: []
  spf: true
  dmarc: false