Steel · Domain Security

Steel Dev Domain Security

Domain security

Domain security posture for Steel, 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 absent, SPF absent, DMARC absent.

BrowserWeb AutomationScrapingAI AgentsOpen Source

Transport & Host Security

steel.dev
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 18 13:34:45 2026 GMT
docs.steel.dev
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 15 19:05:18 2026 GMT
api.steel.dev
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 4 22:22:48 2026 GMT

Domain (DNS/Email) Security

steel.dev
DNSSEC: no · SPF: no · 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: steel.dev
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 18 13:34:45 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: docs.steel.dev
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 15 19:05:18 2026 GMT
  hsts: true
  hsts_max_age: 63072000
- host: api.steel.dev
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  4 22:22:48 2026 GMT
  hsts: false
domains:
- domain: steel.dev
  dnssec: false
  caa: []
  spf: false
  dmarc: false