Simply Energy · Domain Security

Simply Energy Domain Security

Domain security

Domain security posture for Simply Energy, probed live across 4 host(s) and 3 registrable domain(s). 4 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

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Transport & Host Security

public.cdr.engie.com.au
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Nov 25 23:59:59 2026 GMT
www.simplyenergy.com.au
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Aug 25 23:59:59 2026 GMT
engie.com.au
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Jan 20 23:59:59 2027 GMT
cdr.energymadeeasy.gov.au
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Jan 31 23:59:59 2027 GMT

Domain (DNS/Email) Security

simplyenergy.com.au
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
engie.com.au
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
energymadeeasy.gov.au
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: yes

Source

Domain Security

Raw ↑ 
generated: '2026-07-27'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: public.cdr.engie.com.au
  role: registered CDR Public Base URI (apis[].baseURL) - added manually, the automated probe
    reads only apis.yml Website/Portal/humanURL hosts
  https: true
  tls_version: TLSv1.3
  tls_issuer: 'C=US, O=Amazon, CN=Amazon RSA 2048 M01'
  cert_expires: Nov 25 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 63072000
  hsts_include_subdomains: true
  security_headers:
    x-content-type-options: nosniff
    x-frame-options: DENY
  probed: '2026-07-27'
- host: www.simplyenergy.com.au
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 25 23:59:59 2026 GMT
  hsts: null
- host: engie.com.au
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 20 23:59:59 2027 GMT
  hsts: null
- host: cdr.energymadeeasy.gov.au
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 31 23:59:59 2027 GMT
  hsts: null
domains:
- domain: simplyenergy.com.au
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: engie.com.au
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: energymadeeasy.gov.au
  role: Australian Energy Regulator host serving CDR generic tariff data on this retailer's
    behalf - not owned or operated by the retailer
  dnssec: false
  caa: ['0 issuewild "amazonaws.com"', '0 issuewild "amazontrust.com"', '0 issuewild "awstrust.com"',
    '0 issuewild "amazon.com"']
  spf: true
  spf_record: v=spf1 include:amazonses.com -all
  dmarc: true
  dmarc_policy: quarantine
  probed: '2026-07-27'
findings:
- The retailer's own registered CDR Public Base URI (public.cdr.engie.com.au) is the strongest
  host in this provider's surface - TLS 1.3, HSTS with a two-year max-age and includeSubDomains,
  nosniff and DENY framing.
- Neither corporate domain (simplyenergy.com.au, engie.com.au) publishes a CAA record or
  DNSSEC, and neither web host returned an HSTS header to the probe. Both sit behind Cloudflare
  and return HTTP 403 to automated fetchers, so the HSTS result for those two hosts is
  unconfirmed rather than proven absent.
- Both corporate domains publish SPF and a DMARC policy of p=reject, which is the strongest
  possible DMARC posture.
- energymadeeasy.gov.au is included because it is an apis[].baseURL host, but it belongs to the
  Australian Energy Regulator. Its posture should not be credited to or held against this
  retailer.