Cloudflare R2 · Domain Security

Cloudflare R2 Domain Security

Domain security

Domain security posture for Cloudflare R2, probed live across 3 host(s) and 2 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=reject).

Object StorageCloud StorageS3-CompatibleEgress-FreeBucketsDeveloper PlatformCloudflare

Transport & Host Security

www.cloudflare.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 4 07:46:56 2026 GMT
developers.cloudflare.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Aug 27 16:43:14 2026 GMT
.r2.cloudflarestorage.com
HTTPS: no · HSTS: no

Domain (DNS/Email) Security

cloudflare.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=reject) · CAA: yes
cloudflarestorage.com
DNSSEC: yes · SPF: no · DMARC: no · 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: www.cloudflare.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  4 07:46:56 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: developers.cloudflare.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 27 16:43:14 2026 GMT
  hsts: true
  hsts_max_age: 15552000
- host: <account_id>.r2.cloudflarestorage.com
  https: false
domains:
- domain: cloudflare.com
  dnssec: true
  caa:
  - 0 issuewild "pki.goog; cansignhttpexchanges=yes"
  - 0 issuewild "ssl.com"
  - 0 iodef "mailto:tls-abuse@cloudflare.com"
  - 0 issue "comodoca.com"
  - 0 issue "digicert.com; cansignhttpexchanges=yes"
  - 0 issue "letsencrypt.org"
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: cloudflarestorage.com
  dnssec: true
  caa: []
  spf: false
  dmarc: false