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Executive's DNS Intelligence Brief

Board-level domain security assessment — defcon.org

3 Aug 2026, 02:57 UTC · 26.2s · SHA-3-512: 13b6✱✱✱✱ Verify ·Archived
DNS Security & Trust Posture
Risk Level: Low Risk
8 protocols configured, 1 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
Protected
Brand Impersonation
Not Set Up
DNS Tampering
Protected
Certificate Control
Configured
What Requires Attention
Recommended Upgrade DMARC policy from quarantine to reject (p=reject) for maximum spoofing protection
The BIG Questions
Can this domain be impersonated by email? Partly SPF and DMARC are enforced at p=quarantine, 100% (RFC 7489 §6.3) — receivers accept failing mail and set it aside, so a spoofed message still reaches the mailbox in spam or junk rather than being refused
Can DNS itself be tampered with? No DNSSEC signed; a validating resolver confirmed the cryptographic chain of trust via the AD flag (RFC 4035 §3.2.3)
Can this brand be convincingly faked? Likely DMARC quarantine flags but does not reject spoofed mail (RFC 7489 §6.3), and no BIMI brand verification — lookalike domains display identically in inboxes; CAA restricts certificate issuance (RFC 8659 §4) but visual brand faking remains open
Is mail transport encryption enforced? Yes Both MTA-STS and DANE enforce encrypted mail delivery
Is certificate issuance controlled? Yes CAA records restrict which certificate authorities may issue certificates
Does this domain publish AI agent instructions? No No llms.txt file detected — AI models have no structured instructions for this domain
Is AI crawling of our content controlled? Yes robots.txt actively blocks AI crawlers from scraping site content
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 Gandi SAS
Email Provider Unknown
Web Hosting Unknown
DNS Hosting Unknown

Technical Findings

Email Authentication
Can this domain be impersonated by email? Partly — SPF and DMARC are enforced at p=quarantine, 100% (RFC 7489 §6.3) — receivers accept failing mail and set it aside, so a spoofed message still reaches the mailbox in spam or junk rather than being refused
SPF (Sender Policy) Configured
DMARC (Policy) Configured Policy: quarantine
DKIM (Signatures) Not Detected
Mail Posture Moderately Protected
Mail Transport Security
Is mail transport encryption enforced? Yes — Both MTA-STS and DANE enforce encrypted mail delivery
MTA-STS Active Mode: enforce
DANE / TLSA Active
TLS-RPT (Reporting) Configured
Mail Transport Enforced Policy-assessed 2 probes
DNS Security
Can DNS itself be tampered with? No — DNSSEC signed; a validating resolver confirmed the cryptographic chain of trust via the AD flag (RFC 4035 §3.2.3)
DNSSEC Signed & Validated
DNSSEC validated by resolver - DNS responses are authenticated
NS Delegation Healthy
Delegation Consistency 1 Issue
NS Fleet Health 1 Issue Diversity: Poor
DNSSEC Operations 3 Issues 3 keys, 2 sigs
Brand & Certificate Controls
Can this brand be convincingly faked? Likely — DMARC quarantine flags but does not reject spoofed mail (RFC 7489 §6.3), and no BIMI brand verification — lookalike domains display identically in inboxes; CAA restricts certificate issuance (RFC 8659 §4) but visual brand faking remains open
Is certificate issuance controlled? Yes — CAA records restrict which certificate authorities may issue certificates
BIMI (Brand Logo) Not Configured
CAA (Certificate) Configured
AI Surface Scanner Governance Active
Does this domain publish AI agent instructions? No — No llms.txt file detected — AI models have no structured instructions for this domain
Is AI crawling of our content controlled? Yes — robots.txt actively blocks AI crawlers from scraping site content
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 Not Found No llms.txt file detected
AI Crawler Governance Blocking Active Blocked: YouBot
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 1 total Achievable: Hardened
Medium Upgrade DMARC to Reject

Your DMARC policy is set to quarantine. Upgrade to p=reject for maximum protection — reject instructs receivers to discard spoofed mail entirely rather than quarantining it.

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.

View Engineer's DNS Intelligence Report

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12 RFCs evaluated · DNS state at 3 Aug 2026, 02:57 UTC
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