Landmark Information Group · Domain Security

Landmark Information Domain Security

Domain security

Domain security posture for Landmark Information Group, probed live across 3 host(s) and 2 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.3); 2 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=none).

Real EstateUnited KingdomPropTechProperty DataConveyancingLand RegistryGeospatialValuationAnti-Money LaunderingPlanning DataMortgage

Transport & Host Security

www.landmark.co.uk
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Sep 15 06:16:41 2026 GMT
www.landmarkcloudservices.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Jan 10 23:59:59 2027 GMT
api.landmarkcloudservices.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Jan 27 23:59:59 2027 GMT

Domain (DNS/Email) Security

landmark.co.uk
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · CAA: none
landmarkcloudservices.com
DNSSEC: no · SPF: yes · DMARC: no · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-07-26'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.landmark.co.uk
  https: true
  tls_version: TLSv1.3
  cert_expires: Sep 15 06:16:41 2026 GMT
  hsts: true
  hsts_max_age: 2592000
- host: www.landmarkcloudservices.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 10 23:59:59 2027 GMT
  hsts: true
  hsts_max_age: 10886400
- host: api.landmarkcloudservices.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 27 23:59:59 2027 GMT
  hsts: null
domains:
- domain: landmark.co.uk
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none
- domain: landmarkcloudservices.com
  dnssec: false
  caa: []
  spf: true
  dmarc: false