Executive's DNS Intelligence Brief
TLP:AMBER
Limited disclosure — recipients may share within their organization only
DNS Security & Trust Posture
Risk Level:
High Risk
2 protocols configured, 7 not configured
1 recommendation
Analysis Confidence
MODERATE
Resolver agreement is inconsistent for some protocols, limiting confidence. Data currency and system maturity are adequate.
Email Spoofing
Partial
Brand Impersonation
Not Set Up
DNS Tampering
Unsigned
Certificate Control
Open
What Requires Attention
Recommended
Publish a DMARC record starting with p=none and rua reporting
The BIG Questions
Can this domain be impersonated by email?
No
null MX indicates no-mail domain
Can DNS itself be tampered with?
Possible
DNSSEC is not deployed, DNS responses are not cryptographically verified
Can this brand be convincingly faked?
Yes
No DMARC policy (RFC 7489) — attackers can send email appearing to be from this domain with no sender-authentication barrier
Is mail transport encryption enforced?
No
No MTA-STS or DANE — mail transport encryption is opportunistic only
Is certificate issuance controlled?
No
No CAA records — any certificate authority may issue certificates for this domain
Does this domain publish AI agent instructions?
Yes
llms.txt and llms-full.txt published — AI models receive structured context about this domain
Is AI crawling of our content controlled?
No
robots.txt present but does not block AI crawlers — content may be freely scraped
Has someone manipulated AI recommendations about us?
No
No indicators of AI recommendation manipulation found
Are there hidden AI prompts on our site?
No
No hidden prompt artifacts found in page source
Domain Overview
Registrar
HANGANG Systems, Inc. dba Doregi.com
Email Provider
No Mail Domain
Web Hosting
Unknown
DNS Hosting
Unknown
Technical Findings
Email Authentication
Can this domain be impersonated by email?
No
— null MX indicates no-mail domain
SPF (Sender Policy)
Configured
DMARC (Policy)
Missing
DKIM (Signatures)
Not Detected
Mail Posture
No-Mail Domain — Incomplete Hardening
Mail Transport Security
Is mail transport encryption enforced?
No
— No MTA-STS or DANE — mail transport encryption is opportunistic only
MTA-STS
Partial
DANE / TLSA
Hosted Provider
No valid MX hosts — DANE check skipped
TLS-RPT (Reporting)
Not Configured
Mail Transport
Not Enforced
Policy-assessed
DNS Security
Can DNS itself be tampered with?
Possible
— DNSSEC is not deployed, DNS responses are not cryptographically verified
DNSSEC
Partial
DNSSEC not configured - DNS responses are unsigned
NS Delegation
Healthy
Delegation Consistency
1 Issue
NS Fleet Health
Healthy
Diversity: Fair
Brand & Certificate Controls
Can this brand be convincingly faked?
Yes
— No DMARC policy (RFC 7489) — attackers can send email appearing to be from this domain with no sender-authentication barrier
Is certificate issuance controlled?
No
— No CAA records — any certificate authority may issue certificates for this domain
BIMI (Brand Logo)
Not Configured
CAA (Certificate)
Open
Any certificate authority may issue certificates
AI Surface Scanner Governance Active
Does this domain publish AI agent instructions?
Yes
— llms.txt and llms-full.txt published — AI models receive structured context about this domain
Is AI crawling of our content controlled?
No
— robots.txt present but does not block AI crawlers — content may be freely scraped
Has someone manipulated AI recommendations about us?
No
— No indicators of AI recommendation manipulation found
Are there hidden AI prompts on our site?
No
— No hidden prompt artifacts found in page source
LLM Context File
llms.txt Found
Domain provides structured context for AI models
Extended
AI Crawler Governance
Not Blocking
No AI crawler restrictions found in robots.txt
Poisoning Indicators
None Found
No AI recommendation poisoning indicators detected
Hidden Prompt Artifacts
None Found
No hidden prompt artifacts detected
Public Exposure
Clear
No secrets detected in publicly accessible source
Priority Actions 3 total Achievable: Low Risk
High
Add DMARC Reject for Null MX Domain
This domain publishes a Null MX record (RFC 7505) but lacks a DMARC reject policy. Without it, attackers can still spoof email from this domain. Complete the no-mail hardening with a strict DMARC reject policy.
Medium
Enable DNSSEC
DNSSEC is not enabled for this domain. DNSSEC provides cryptographic authentication of DNS responses, preventing cache poisoning and DNS spoofing attacks.
Low
Add CAA Records
CAA records specify which Certificate Authorities may issue certificates for your domain, reducing the risk of unauthorized certificate issuance.
Appendix — Additional Resources
Full technical details including raw DNS records, DKIM public keys, IP/ASN mappings, resolver consensus evidence, and verification commands are available in the Engineer's DNS Intelligence Report.
Verify Report Integrity SHA-3-512 Has this report been tampered with? Verify below
Tamper-evident fingerprint binding this analysis to its data, domain, timestamp, and tool version.
20bad8d3c7ab1653c3746884da2a1f7ba3438c6dc0ce08fb90d8aaa15b2fc3971fcc0f3b5d4c77669a86b12de4d448baa9b98eb3589da48c3fa2af901b995e1a
12 RFCs evaluated · DNS state at 8 Mar 2026, 01:42 UTC