Optimism Etherscan · Domain Security

Optimistic Etherscan Domain Security

Domain security

Domain security posture for Optimism Etherscan, probed live across 3 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 0 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=reject).

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Transport & Host Security

optimistic.etherscan.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 20 03:43:38 2026 GMT
docs.optimism.etherscan.io
HTTPS: no · HSTS: no
api-optimistic.etherscan.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 20 03:43:38 2026 GMT

Domain (DNS/Email) Security

etherscan.io
DNSSEC: yes · SPF: yes · DMARC: yes (p=reject) · 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: optimistic.etherscan.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 20 03:43:38 2026 GMT
  hsts: false
- host: docs.optimism.etherscan.io
  https: false
- host: api-optimistic.etherscan.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 20 03:43:38 2026 GMT
  hsts: false
domains:
- domain: etherscan.io
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject