Twelve · Domain Security

Twelve Domain Security

Domain security

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

CompanyCarbon TransformationClimate TechSustainable Aviation FuelChemicalsClean EnergyManufacturing

Transport & Host Security

twelve.co
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 15 01:14:11 2026 GMT

Domain (DNS/Email) Security

twelve.co
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none

Source

Domain Security

twelve-domain-security.yml Raw ↑ 
generated: '2026-07-21'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: twelve.co
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 15 01:14:11 2026 GMT
  hsts: true
  hsts_max_age: 31556952
domains:
- domain: twelve.co
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject

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Tools for security posture

4 MCP tools reach this
  • find_securityBrowse and filter every security artifact in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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