Microsoft Visual Studio · Domain Security

Microsoft Visual Studio Domain Security

Domain security

Domain security posture for Microsoft Visual Studio, 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 absent.

Developer ToolsExtensionsIDEMicrosoftVS Code

Transport & Host Security

marketplace.visualstudio.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 6 13:38:08 2026 GMT
visualstudio.microsoft.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Mar 1 19:38:54 2027 GMT
learn.microsoft.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Dec 11 02:26:09 2026 GMT

Domain (DNS/Email) Security

visualstudio.com
DNSSEC: no · SPF: yes · DMARC: no · CAA: yes
microsoft.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: yes

Source

Domain Security

microsoft-visual-studio-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: marketplace.visualstudio.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep  6 13:38:08 2026 GMT
  hsts: null
- host: visualstudio.microsoft.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Mar  1 19:38:54 2027 GMT
  hsts: true
  hsts_max_age: 15768000
- host: learn.microsoft.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Dec 11 02:26:09 2026 GMT
  hsts: true
  hsts_max_age: 31536000
domains:
- domain: visualstudio.com
  dnssec: false
  caa:
  - 0 contactemail "caarecordaware@microsoft.com"
  spf: true
  dmarc: false
- domain: microsoft.com
  dnssec: false
  caa:
  - 0 contactemail "caarecordaware@microsoft.com"
  spf: true
  dmarc: true
  dmarc_policy: reject