AT Protocol · Domain Security

Atproto Domain Security

Domain security

Domain security posture for AT Protocol, probed live across 3 host(s) and 2 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.3); 0 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

Social NetworkingDecentralizedFederatedOpen SourceBlueskyFediverseIdentityXRPCLexicon

Transport & Host Security

atproto.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 17 18:20:39 2026 GMT
bsky.social
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Feb 8 23:59:59 2027 GMT
docs.bsky.app
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Aug 24 02:04:29 2026 GMT

Domain (DNS/Email) Security

atproto.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
bsky.social
DNSSEC: no · SPF: no · DMARC: yes (p=reject) · 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: atproto.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 17 18:20:39 2026 GMT
  hsts: false
- host: bsky.social
  https: true
  tls_version: TLSv1.3
  cert_expires: Feb  8 23:59:59 2027 GMT
  hsts: false
- host: docs.bsky.app
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 24 02:04:29 2026 GMT
  hsts: false
domains:
- domain: atproto.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: bsky.social
  dnssec: false
  caa: []
  spf: false
  dmarc: true
  dmarc_policy: reject