Flask · Domain Security

Flask Domain Security

Domain security

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

FrameworksLightweightMicroframeworkPalletsPythonWeb FrameworkWSGI

Transport & Host Security

flask.palletsprojects.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 4 11:12:50 2026 GMT

Domain (DNS/Email) Security

palletsprojects.com
DNSSEC: no · SPF: yes · DMARC: no · CAA: yes

Source

Domain Security

flask-domain-security.yml Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: flask.palletsprojects.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  4 11:12:50 2026 GMT
  hsts: false
domains:
- domain: palletsprojects.com
  dnssec: false
  caa:
  - 0 issue "letsencrypt.org"
  - 0 issue "pki.goog; cansignhttpexchanges=yes"
  - 0 issue "ssl.com"
  - 0 issuewild "comodoca.com"
  - 0 issuewild "digicert.com; cansignhttpexchanges=yes"
  - 0 issuewild "letsencrypt.org"
  spf: true
  dmarc: false