Penguin Publishing · Domain Security

Penguin Publishing Domain Security

Domain security

Domain security posture for Penguin Publishing, 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 absent, DMARC absent.

BooksPublic APIs

Transport & Host Security

www.penguinrandomhouse.biz
HTTPS: yes · TLS: TLSv1.2 · HSTS: yes · cert expires: Jan 29 23:59:59 2027 GMT

Domain (DNS/Email) Security

penguinrandomhouse.biz
DNSSEC: no · SPF: no · DMARC: no · CAA: none

Source

Domain Security

penguin-publishing-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.penguinrandomhouse.biz
  https: true
  tls_version: TLSv1.2
  cert_expires: Jan 29 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: penguinrandomhouse.biz
  dnssec: false
  caa: []
  spf: false
  dmarc: false