Ameren · Domain Security

Ameren Domain Security

Domain security

Domain security posture for Ameren, probed live across 3 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

UtilityEnergyElectricNatural GasSmart GridGreen ButtonRenewable EnergyFortune 500

Transport & Host Security

www.ameren.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 7 19:19:23 2026 GMT
api.ameren.com
HTTPS: no · HSTS: no
anm.ameren.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 7 19:19:23 2026 GMT

Domain (DNS/Email) Security

ameren.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: yes

Source

Domain Security

ameren-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.ameren.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  7 19:19:23 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.ameren.com
  https: false
- host: anm.ameren.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  7 19:19:23 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: ameren.com
  dnssec: false
  caa:
  - 0 issue "globalsign.com"
  - 128 issuevmc "digicert.com"
  - 0 issue "amazon.com"
  - 0 issue "amazonaws.com"
  - 0 issue "amazontrust.com"
  - 0 issue "awstrust.com"
  spf: true
  dmarc: true
  dmarc_policy: reject