Debian · Domain Security

Debian Domain Security

Domain security

Domain security posture for Debian, probed live across 3 host(s) and 1 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=none).

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Transport & Host Security

www.debian.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 1 00:53:46 2026 GMT
sources.debian.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 16 01:00:53 2026 GMT
bugs.debian.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 31 01:06:37 2026 GMT

Domain (DNS/Email) Security

debian.org
DNSSEC: yes · SPF: yes · DMARC: yes (p=none) · CAA: yes

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.debian.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  1 00:53:46 2026 GMT
  hsts: true
  hsts_max_age: 15552000
- host: sources.debian.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 16 01:00:53 2026 GMT
  hsts: true
  hsts_max_age: 15552000
- host: bugs.debian.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 31 01:06:37 2026 GMT
  hsts: true
  hsts_max_age: 15552000
domains:
- domain: debian.org
  dnssec: true
  caa:
  - 0 iodef "mailto:dsa@debian.org"
  - 128 issuewild ";"
  - 128 issue "letsencrypt.org;validationmethods=dns-01;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/346607"
  spf: true
  dmarc: true
  dmarc_policy: none