Kernel · Domain Security

Kernel So Domain Security

Domain security

Domain security posture for Kernel, 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).

AgentsAIArtificial IntelligenceBrowser AutomationBrowsersComputer UseHeadless BrowsersMCPPlaywrightWeb Agents

Transport & Host Security

www.kernel.sh
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 21 13:04:32 2026 GMT
api.onkernel.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Dec 26 23:59:59 2026 GMT
mcp.onkernel.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 17 07:36:14 2026 GMT

Domain (DNS/Email) Security

kernel.sh
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · CAA: none
onkernel.com
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · 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.kernel.sh
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 21 13:04:32 2026 GMT
  hsts: true
  hsts_max_age: 63072000
- host: api.onkernel.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec 26 23:59:59 2026 GMT
  hsts: null
- host: mcp.onkernel.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 17 07:36:14 2026 GMT
  hsts: true
  hsts_max_age: 63072000
domains:
- domain: kernel.sh
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none
- domain: onkernel.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none