Crimson Education · Domain Security

Crimson Education Domain Security

Domain security

Domain security posture for Crimson Education, probed live across 3 host(s) and 2 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=none).

CompanyEducationEdTechAdmissionsTutoringStudentsOnline LearningMentoring

Transport & Host Security

www.crimsoneducation.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 27 17:53:34 2026 GMT
www.npmjs.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 12 04:22:28 2026 GMT
api.app.crimsoneducation.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 7 23:59:59 2026 GMT

Domain (DNS/Email) Security

crimsoneducation.org
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · CAA: none
npmjs.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=quarantine) · CAA: yes

Source

Domain Security

crimson-education-domain-security.yml Raw ↑ 
generated: '2026-08-04'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.crimsoneducation.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 27 17:53:34 2026 GMT
  hsts: null
- host: www.npmjs.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 12 04:22:28 2026 GMT
  hsts: null
- host: api.app.crimsoneducation.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  7 23:59:59 2026 GMT
  hsts: null
domains:
- domain: crimsoneducation.org
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none
- domain: npmjs.com
  dnssec: true
  caa:
  - 0 issuewild "ssl.com"
  - 0 issue "comodoca.com"
  - 0 issue "digicert.com; cansignhttpexchanges=yes"
  - 0 issue "letsencrypt.org"
  - 0 issue "pki.goog; cansignhttpexchanges=yes"
  - 0 issue "sectigo.com"
  spf: true
  dmarc: true
  dmarc_policy: quarantine