Cello · Domain Security

Cello Domain Security

Domain security

Domain security posture for Cello, probed live across 3 host(s) and 1 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=quarantine).

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Transport & Host Security

docs.cello.so
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 1 11:33:35 2026 GMT
api.cello.so
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 10 23:59:59 2026 GMT
api.sandbox.cello.so
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 10 23:59:59 2026 GMT

Domain (DNS/Email) Security

cello.so
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-18'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: docs.cello.so
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  1 11:33:35 2026 GMT
  hsts: true
  hsts_max_age: 63072000
- host: api.cello.so
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 10 23:59:59 2026 GMT
  hsts: null
- host: api.sandbox.cello.so
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 10 23:59:59 2026 GMT
  hsts: null
domains:
- domain: cello.so
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine