Zcal · Domain Security

Zcal Domain Security

Domain security

Domain security posture for Zcal, probed live across 2 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=none).

SchedulingCalendarBookingMeetingsWebhooks

Transport & Host Security

zcal.co
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Aug 24 08:54:24 2026 GMT
help.zcal.co
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 1 02:25:00 2026 GMT

Domain (DNS/Email) Security

zcal.co
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: zcal.co
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 24 08:54:24 2026 GMT
  hsts: false
- host: help.zcal.co
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  1 02:25:00 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: zcal.co
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none