TCP/IP · Domain Security

Tcp Ip Domain Security

Domain security

Domain security posture for TCP/IP, probed live across 2 host(s) and 2 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 0 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=none).

NetworkingProtocolInternetStandardsIETFRFCTCPIP

Transport & Host Security

www.ietf.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 5 20:01:07 2026 GMT
www.rfc-editor.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 12 05:02:36 2026 GMT

Domain (DNS/Email) Security

ietf.org
DNSSEC: yes · SPF: yes · DMARC: yes (p=none) · CAA: none
rfc-editor.org
DNSSEC: yes · SPF: yes · DMARC: no · CAA: none

Source

Domain Security

tcp-ip-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.ietf.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  5 20:01:07 2026 GMT
  hsts: false
- host: www.rfc-editor.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 12 05:02:36 2026 GMT
  hsts: false
domains:
- domain: ietf.org
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none
- domain: rfc-editor.org
  dnssec: true
  caa: []
  spf: true
  dmarc: false