Highlight (highlight.io) · Domain Security

Highlight Io Domain Security

Domain security

Domain security posture for Highlight (highlight.io), 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 present, SPF present, DMARC present (p=none).

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Transport & Host Security

www.highlight.io
HTTPS: yes · HSTS: no
app.highlight.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 18 23:59:59 2026 GMT
otel.highlight.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 11 23:59:59 2026 GMT

Domain (DNS/Email) Security

highlight.io
DNSSEC: yes · 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: www.highlight.io
  https: true
  tls_cert_error: '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has
    expired (_ssl.c:1082)'
  hsts: null
- host: app.highlight.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 18 23:59:59 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: otel.highlight.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 11 23:59:59 2026 GMT
  hsts: null
domains:
- domain: highlight.io
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none