Delft University of Technology · Domain Security

Tu Delft Domain Security

Domain security

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

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Transport & Host Security

www.tudelft.nl

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 11 23:59:59 2026 GMT

djehuty.4tu.nl

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 12 22:09:22 2026 GMT

data.4tu.nl

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 6 08:20:16 2026 GMT

Domain (DNS/Email) Security

tudelft.nl

DNSSEC: yes · SPF: yes · DMARC: yes (p=reject) · CAA: yes

4tu.nl

DNSSEC: yes · SPF: yes · DMARC: no · CAA: none

Source

Domain Security

generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.tudelft.nl
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 11 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: djehuty.4tu.nl
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 12 22:09:22 2026 GMT
  hsts: true
  hsts_max_age: 63072000
- host: data.4tu.nl
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  6 08:20:16 2026 GMT
  hsts: true
  hsts_max_age: 63072000
domains:
- domain: tudelft.nl
  dnssec: true
  caa:
  - 0 issue "letsencrypt.org"
  - 0 issue "sectigo.com"
  - 0 iodef "mailto:abuse@tudelft.nl"
  - 0 issuewild "harica.gr"
  - 0 issuemail "harica.gr"
  - 0 issue "harica.gr"
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: 4tu.nl
  dnssec: true
  caa: []
  spf: true
  dmarc: false