HTML5 · Domain Security

Html5 Domain Security

Domain security

Domain security posture for HTML5, probed live across 1 host(s) and 1 registrable domain(s). 1 host(s) serve HTTPS (up to TLSv1.2); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC absent.

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Transport & Host Security

html.spec.whatwg.org
HTTPS: yes · TLS: TLSv1.2 · HSTS: yes · cert expires: Aug 23 02:20:30 2026 GMT

Domain (DNS/Email) Security

whatwg.org
DNSSEC: no · SPF: yes · DMARC: no · CAA: none

Source

Domain Security

html5-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: html.spec.whatwg.org
  https: true
  tls_version: TLSv1.2
  cert_expires: Aug 23 02:20:30 2026 GMT
  hsts: true
  hsts_max_age: 63072000
domains:
- domain: whatwg.org
  dnssec: false
  caa: []
  spf: true
  dmarc: false