Masergy · Domain Security

Masergy Domain Security

Domain security

Domain security posture for Masergy, probed live across 2 host(s) and 1 registrable domain(s). 2 host(s) serve HTTPS (up to TLSv1.2); 0 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

CompanyNetworkingSD-WANSASEManaged SecurityUnified CommunicationsCloud NetworkingEnterprise

Transport & Host Security

www.masergy.com
HTTPS: yes · TLS: TLSv1.2 · HSTS: no
api.masergy.com
HTTPS: yes · HSTS: no

Domain (DNS/Email) Security

masergy.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none

Source

Domain Security

masergy-domain-security.yml Raw ↑ 
generated: '2026-07-20'
method: probed
source: live TLS/HTTP HEAD + dig on masergy.com (2026-07-20)
note: >-
  Masergy Communications was acquired by Comcast Business in October 2021 and
  folded into Comcast Business. The masergy.com web hosts now 301-redirect to
  business.comcast.com/masergy/. The domain's DNS + email records remain active
  (Proofpoint-managed). No standalone Masergy API/developer surface is live:
  api.masergy.com resolves to F5 Distributed Cloud but returns HTTP 502, and
  developer.masergy.com / docs.masergy.com do not resolve.
hosts:
  - host: www.masergy.com
    https: true
    tls_version: TLSv1.2
    cert_valid: true
    hsts: false
    redirects_to: https://business.comcast.com/masergy/
  - host: api.masergy.com
    https: true
    http_status: 502
    live_api: false
    upstream: F5 Distributed Cloud (ves.io)
domains:
  - domain: masergy.com
    dnssec: false
    caa: []
    spf: true
    spf_record: "v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all"
    dmarc: true
    dmarc_policy: reject
    dmarc_provider: Proofpoint Email Defense