Jupyter · Domain Security

Jupyter Domain Security

Domain security

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

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Transport & Host Security

jupyter.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 19 11:01:54 2026 GMT
jupyter-notebook.readthedocs.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 27 13:13:23 2026 GMT
jupyter-server.readthedocs.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 27 13:13:23 2026 GMT

Domain (DNS/Email) Security

jupyter.org
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · CAA: none
readthedocs.io
DNSSEC: no · SPF: no · DMARC: no · CAA: yes

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: jupyter.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 19 11:01:54 2026 GMT
  hsts: false
- host: jupyter-notebook.readthedocs.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 27 13:13:23 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: jupyter-server.readthedocs.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 27 13:13:23 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: jupyter.org
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none
- domain: readthedocs.io
  dnssec: false
  caa:
  - 0 issuewild "ssl.com"
  - 0 issue " amazontrust.com"
  - 0 issue "comodoca.com"
  - 0 issue "digicert.com; cansignhttpexchanges=yes"
  - 0 issue "letsencrypt.org"
  - 0 issue "pki.goog; cansignhttpexchanges=yes"
  spf: false
  dmarc: false

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Tools for security posture

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  • 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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