California Institute of Technology · Domain Security

Caltech Domain Security

Domain security

Domain security posture for California Institute of Technology, probed live across 3 host(s) and 1 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=none).

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Transport & Host Security

www.caltech.edu
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Dec 4 23:59:59 2026 GMT
data.caltech.edu
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 24 19:09:35 2026 GMT
irsa.ipac.caltech.edu
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Nov 25 23:59:59 2026 GMT

Domain (DNS/Email) Security

caltech.edu
DNSSEC: yes · SPF: yes · DMARC: yes (p=none) · CAA: none

Source

Domain Security

caltech-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.caltech.edu
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec  4 23:59:59 2026 GMT
  hsts: false
- host: data.caltech.edu
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 24 19:09:35 2026 GMT
  hsts: true
  hsts_max_age: 31556926
- host: irsa.ipac.caltech.edu
  https: true
  tls_version: TLSv1.3
  cert_expires: Nov 25 23:59:59 2026 GMT
  hsts: false
domains:
- domain: caltech.edu
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none