Lemmy · Domain Security

Lemmy Domain Security

Domain security

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

CommunitiesFederatedFediverseLink AggregatorOpen-SourceSocial Networks

Transport & Host Security

join-lemmy.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 4 13:59:52 2026 GMT
lemmy.world
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 23 02:33:53 2026 GMT

Domain (DNS/Email) Security

join-lemmy.org
DNSSEC: no · SPF: yes · DMARC: no · CAA: none
lemmy.world
DNSSEC: yes · SPF: yes · 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: join-lemmy.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  4 13:59:52 2026 GMT
  hsts: false
- host: lemmy.world
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 23 02:33:53 2026 GMT
  hsts: false
domains:
- domain: join-lemmy.org
  dnssec: false
  caa: []
  spf: true
  dmarc: false
- domain: lemmy.world
  dnssec: true
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject