generated: '2026-07-27'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.landisgyr.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 12 00:26:14 2026 GMT
  hsts: true
  hsts_max_age: 31557600
- host: toolsportal.landisgyr.com
  https: true
  tls_version: TLSv1.2
  cert_expires: Sep  2 18:54:11 2026 GMT
  hsts: false
- host: developers.landisgyr.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 25 10:24:45 2026 GMT
  hsts: true
  hsts_max_age: 31556926
  note: Developer portal (Firebase Hosting).
- host: blog.landisgyr.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 14 01:50:21 2026 GMT
  hsts: true
  hsts_max_age: 31536000
  note: HubSpot-hosted blog.
- host: investors.landisgyr.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 13 05:38:36 2026 GMT
  hsts: false
domains:
- domain: landisgyr.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine
  note: >-
    No DNSSEC and no CAA records. DMARC is enforced at p=quarantine rather than p=reject.
    Verified by dig on 2026-07-27.
notes:
- >-
  toolsportal.landisgyr.com is the weakest host — TLS 1.2 with no HSTS — and it is the
  customer login surface. Every other resolving host negotiates TLS 1.3.
- >-
  Hosts probed but excluded from the table: eu.landisgyr.com (EMEA property, divested to
  AURELIUS in 2026) and careers.landisgyr.com (third-party jobs2web ATS).