Valero Energy · Domain Security

Valero Energy Domain Security

Domain security

Domain security posture for Valero Energy, probed live across 3 host(s) and 2 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=none).

EnergyPetroleumRefiningRenewable FuelsFortune 100EthanolRenewable Diesel

Transport & Host Security

www.valero.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Jan 15 23:59:59 2027 GMT
www.sec.gov
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Dec 11 23:59:59 2026 GMT
investorvalero.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 21 08:46:07 2026 GMT

Domain (DNS/Email) Security

valero.com
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · CAA: yes
sec.gov
DNSSEC: yes · SPF: yes · DMARC: yes (p=reject) · CAA: yes

Source

Domain Security

valero-energy-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.valero.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 15 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 300
- host: www.sec.gov
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec 11 23:59:59 2026 GMT
  hsts: null
- host: investorvalero.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 21 08:46:07 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: valero.com
  dnssec: false
  caa:
  - 0 issue "digicert.com"
  - 0 issue "godaddy.com"
  spf: true
  dmarc: true
  dmarc_policy: none
- domain: sec.gov
  dnssec: true
  caa:
  - 0 issue "entrust.net"
  - 0 iodef "mailto:CAIssues@sec.gov"
  - 0 issue "letsencrypt.org"
  - 0 issuewild ";"
  - 0 issue "digicert.com"
  spf: true
  dmarc: true
  dmarc_policy: reject