Southern Company · Domain Security

Southern Company Domain Security

Domain security

Domain security posture for Southern Company, probed live across 5 host(s) and 2 registrable domain(s). 5 host(s) serve HTTPS (up to TLSv1.3); 5 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

EnergyUnited StatesUtilitiesElectricityGasGridSmart MeteringNuclearEnergy MarketsRenewables

Transport & Host Security

www.southerncompany.com

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 15 01:33:25 2026 GMT

api.southernco.com

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 15 01:33:25 2026 GMT

customerservice2.southerncompany.com

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 15 01:33:25 2026 GMT

webauth.southernco.com

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 15 01:33:25 2026 GMT

www.georgiapower.com

HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 15 01:33:25 2026 GMT

Domain (DNS/Email) Security

southerncompany.com

DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none

southernco.com

DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none

Source

Domain Security

generated: '2026-07-27'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml hosts, the Apigee gateway host and the
  customer-portal hosts named in review.yml
note: >-
  Every Southern Company host probed terminates TLS on the Imperva edge and presents the
  same shared GlobalSign DV certificate (subject CN=imperva.com, expires Oct 15 2026) on an
  anonymous handshake — there is no customer-named certificate on the default response.
  HSTS is present everywhere but the max-age is inconsistent across the estate (86,400s on
  the API gateway vs 31,536,000s on the corporate site). Neither registrable domain signs
  with DNSSEC or publishes a CAA record; both publish SPF and a DMARC policy of `reject`.
hosts:
- host: www.southerncompany.com
  https: true
  tls_version: TLSv1.3
  cert_subject: CN=imperva.com
  cert_issuer: GlobalSign Atlas R46 DV TLS CA 2026 Q2
  cert_expires: Oct 15 01:33:25 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: api.southernco.com
  https: true
  tls_version: TLSv1.3
  cert_subject: CN=imperva.com
  cert_issuer: GlobalSign Atlas R46 DV TLS CA 2026 Q2
  cert_expires: Oct 15 01:33:25 2026 GMT
  hsts: true
  hsts_max_age: 86400
  note: Apigee Edge gateway; every path returns the ApplicationNotFound fault (see review.yml)
- host: customerservice2.southerncompany.com
  https: true
  tls_version: TLSv1.3
  cert_subject: CN=imperva.com
  cert_issuer: GlobalSign Atlas R46 DV TLS CA 2026 Q2
  cert_expires: Oct 15 01:33:25 2026 GMT
  hsts: true
  hsts_max_age: 15552000
- host: webauth.southernco.com
  https: true
  tls_version: TLSv1.3
  cert_subject: CN=imperva.com
  cert_issuer: GlobalSign Atlas R46 DV TLS CA 2026 Q2
  cert_expires: Oct 15 01:33:25 2026 GMT
  hsts: true
  hsts_max_age: 15552000
- host: www.georgiapower.com
  https: true
  tls_version: TLSv1.3
  cert_subject: CN=imperva.com
  cert_issuer: GlobalSign Atlas R46 DV TLS CA 2026 Q2
  cert_expires: Oct 15 01:33:25 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: southerncompany.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: southernco.com
  dnssec: false
  caa: []
  spf: true
  spf_record: v=spf1 redirect=spf-enabled.southernco.com
  dmarc: true
  dmarc_policy: reject
  dmarc_record: 'v=DMARC1; p=reject; aspf=s; pct=100; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com;
    ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com'

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