EPA — U.S. Environmental Protection Agency · Domain Security

Epa Domain Security

Domain security

Domain security posture for EPA — U.S. Environmental Protection Agency, probed live across 3 host(s) and 1 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC absent.

GovernmentEnvironmentalOpenDataAirQualityWaterQualityHazardousWasteComplianceEmissions

Transport & Host Security

www.epa.gov
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 21 23:59:59 2026 GMT
aqs.epa.gov
HTTPS: yes · TLS: TLSv1.2 · HSTS: yes · cert expires: Oct 21 23:59:59 2026 GMT
data.epa.gov
HTTPS: yes · TLS: TLSv1.2 · HSTS: no · cert expires: Oct 21 23:59:59 2026 GMT

Domain (DNS/Email) Security

epa.gov
DNSSEC: yes · SPF: yes · DMARC: no · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.epa.gov
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 21 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: aqs.epa.gov
  https: true
  tls_version: TLSv1.2
  cert_expires: Oct 21 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: data.epa.gov
  https: true
  tls_version: TLSv1.2
  cert_expires: Oct 21 23:59:59 2026 GMT
  hsts: null
domains:
- domain: epa.gov
  dnssec: true
  caa: []
  spf: true
  dmarc: false