LanguageTool · Domain Security

Languagetools Domain Security

Domain security

Domain security posture for LanguageTool, 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 absent.

GrammarSpell CheckStyleProofreadingNLPNatural Language ProcessingWritingOpen Source

Transport & Host Security

languagetool.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Aug 18 05:00:51 2026 GMT
api.languagetool.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 26 13:21:47 2026 GMT
api.languagetoolplus.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Sep 26 13:23:51 2026 GMT

Domain (DNS/Email) Security

languagetool.org
DNSSEC: no · SPF: yes · DMARC: no · CAA: none
languagetoolplus.com
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · 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: languagetool.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Aug 18 05:00:51 2026 GMT
  hsts: false
- host: api.languagetool.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 26 13:21:47 2026 GMT
  hsts: null
- host: api.languagetoolplus.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 26 13:23:51 2026 GMT
  hsts: null
domains:
- domain: languagetool.org
  dnssec: false
  caa: []
  spf: true
  dmarc: false
- domain: languagetoolplus.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none