Letel · Domain Security

Letel Domain Security

Domain security

Domain security posture for Letel, probed live across 1 host(s) and 1 registrable domain(s). 1 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=quarantine).

CompanyData CentersNetworkingTelecommunicationsHardwareManufacturingInfrastructureChina

Transport & Host Security

letel.com.cn
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes

Domain (DNS/Email) Security

letel.com.cn
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

letel-domain-security.yml Raw ↑ 
generated: '2026-07-19'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml hosts
notes: >-
  letel.com.cn sits behind a JavaScript bot-check WAF that returns 403 to HEAD
  and non-browser requests, so the automated HTTP probe under-reported HTTPS.
  TLS was confirmed directly with an openssl s_client handshake. HSTS could not
  be observed because the WAF rejects the request before response headers are
  emitted; recorded as unknown rather than false.
hosts:
- host: letel.com.cn
  https: true
  tls_version: TLSv1.3
  tls_verify: ok
  cert_issuer: Sectigo Public Server Authentication CA DV R36
  cert_not_after: '2027-01-18'
  hsts: unknown
  hsts_note: WAF returns 403 to header probes
domains:
- domain: letel.com.cn
  dnssec: false
  caa: []
  caa_note: >-
    No CAA record published. The automated probe recorded wfgqda.r23.35.cn.,
    which is the CNAME target in the resolution chain, not a CAA record.
  spf: true
  spf_record: v=spf1 include:spf.163.com -all
  dmarc: true
  dmarc_policy: quarantine
  dmarc_record: v=DMARC1; p=quarantine; fo=1; ruf=mailto:dmarc@qiye.163.com; rua=mailto:dmarc_report@qiye.163.com