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DNS Tool
Executive's DNS Intelligence Brief
Generated 16 Mar 2026, 15:58 UTC
Duration 6.5s
Version v26.37.20
Integrity 2b425dd7136bd631a11fbb832fbfc2f6e1409f17dab9122397613c253518d740a4ea27980e808e951f87f8087e8c93a99dc8efa3564b2ffbd64aa5bafece940f
Subject Domain
steinr.eu

Executive's DNS Intelligence Brief

Board-level domain security assessment — steinr.eu

16 Mar 2026, 15:58 UTC · 6.5s · SHA-3-512: 2b42✱✱✱✱ Verify
Engineer
DNS Security & Trust Posture
Risk Level: Low Risk
7 protocols configured, 2 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
Basic
DNS Tampering
Protected
Certificate Control
Open
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? Unlikely SPF and DMARC quarantine policy enforced
Can DNS itself be tampered with? No DNSSEC signed and validated, cryptographic chain of trust verified
Can this brand be convincingly faked? Possible DMARC quarantine flags spoofed mail (RFC 7489 §6.3) and BIMI with VMC provides verified brand identity in inboxes; upgrade to p=reject to block spoofed mail outright; adding CAA records (RFC 8659) would further restrict certificate issuance for lookalike domains
Is mail transport encryption enforced? Yes MTA-STS enforces TLS for all inbound mail delivery
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 Name: NETIM (Registrant: NOT DISCLOSED!)
Email Provider Unknown
Web Hosting Unknown
DNS Hosting Cloudflare

Technical Findings

Email Authentication
Can this domain be impersonated by email? Unlikely — SPF and DMARC quarantine policy enforced
SPF (Sender Policy) Configured
DMARC (Policy) Configured Policy: quarantine
DKIM (Signatures) Configured
Mail Posture Moderately Protected
Mail Transport Security
Is mail transport encryption enforced? Yes — MTA-STS enforces TLS for all inbound mail delivery
MTA-STS Active Mode: enforce
DANE / TLSA Hosted Provider No DANE/TLSA records found (checked 3 MX hosts)
TLS-RPT (Reporting) Configured
Mail Transport Enforced Policy-assessed 2 probes
DNS Security
Can DNS itself be tampered with? No — DNSSEC signed and validated, cryptographic chain of trust verified
DNSSEC Signed & Validated
DNSSEC fully configured and validated — AD (Authenticated Data) flag set by resolver 8.8.8.8 confirming cryptographic chain of trust from root to zone (RFC 4035 §3.2.3)
NS Delegation Healthy Managed DNS
Delegation Consistency 1 Issue
NS Fleet Health Healthy Diversity: Fair
DNSSEC Operations 1 Issue 2 keys, 0 sigs
Brand & Certificate Controls
Can this brand be convincingly faked? Possible — DMARC quarantine flags spoofed mail (RFC 7489 §6.3) and BIMI with VMC provides verified brand identity in inboxes; upgrade to p=reject to block spoofed mail outright; adding CAA records (RFC 8659) would further restrict certificate issuance for lookalike domains
Is certificate issuance controlled? No — No CAA records — any certificate authority may issue certificates for this domain
BIMI (Brand Logo) 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 2 total Achievable: Secure
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.

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.

View Engineer's DNS Intelligence Report

Appendix — What AIs Are Being Told About This Organization What do AI systems see when they query this domain?

The following content is served to AI systems (ChatGPT, Gemini, Claude, Perplexity, and others) when they visit this domain. This is the organization's machine-readable narrative — it shapes how AI models describe, recommend, and represent this brand in conversations worldwide.

llms.txt (https://steinr.eu/.well-known/llms.txt)
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Emhl</title>
<link rel="apple-touch-icon" sizes="180x180" href="icons/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="icons/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="icons/favicon-16x16.png">
<link rel="manifest" href="icons/site.webmanifest">
<link rel="mask-icon" href="icons/safari-pinned-tab.svg" color="#5f7667">
<link rel="shortcut icon" href="favicon.ico">
<meta name="msapplication-TileColor" content="#5f7667">
<meta name="msapplication-config" content="icons/browserconfig.xml">
<meta name="theme-color" content="#ffffff">
    <link rel="stylesheet" href="styles/main.css" />
<script defer data-domain="emhl.eu.org" src="https://plausible.steinet.eu.org/js/script.js"></script>
  </head>
  <body>
    <div class="page-wrapper">
      <div class="content-wrapper">
        <a href="https://discord.rover.de" alt="hai">
            <img src="icons/avatar.svg" id="avatar"></img>
        </a>                                       
        <h1>Hi, I'm Emhl</h1>
        <p>
          Physics Student <span class="divider"> | </span> Developing stuff for fun
        </p>
        
        <a href="https://matrix.to/#/@emhl:matrix.org" alt="Matrix">
          <img src="icons/matrix.svg" alt="matrix" class="icon">
        </a>
        <a href="https://github.com/emhl" alt="Github">
          <img src="icons/github.svg" alt="github" class="icon">
        </a>
        <a href="https://discord.com/users/191502482696830976" alt="Discord">
          <img src="icons/discord.svg" alt="discord" class="icon">
        </a>
        <a href="https://t.me/EmhlS" alt="Telegram">
          <img src="icons/telegram.svg" alt="telegram" class="icon">
        </a>
      </div>
    </div>
  </body>
</html>
llms-full.txt (https://steinr.eu/.well-known/llms-full.txt)
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Emhl</title>
<link rel="apple-touch-icon" sizes="180x180" href="icons/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="icons/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="icons/favicon-16x16.png">
<link rel="manifest" href="icons/site.webmanifest">
<link rel="mask-icon" href="icons/safari-pinned-tab.svg" color="#5f7667">
<link rel="shortcut icon" href="favicon.ico">
<meta name="msapplication-TileColor" content="#5f7667">
<meta name="msapplication-config" content="icons/browserconfig.xml">
<meta name="theme-color" content="#ffffff">
    <link rel="stylesheet" href="styles/main.css" />
<script defer data-domain="emhl.eu.org" src="https://plausible.steinet.eu.org/js/script.js"></script>
  </head>
  <body>
    <div class="page-wrapper">
      <div class="content-wrapper">
        <a href="https://discord.rover.de" alt="hai">
            <img src="icons/avatar.svg" id="avatar"></img>
        </a>                                       
        <h1>Hi, I'm Emhl</h1>
        <p>
          Physics Student <span class="divider"> | </span> Developing stuff for fun
        </p>
        
        <a href="https://matrix.to/#/@emhl:matrix.org" alt="Matrix">
          <img src="icons/matrix.svg" alt="matrix" class="icon">
        </a>
        <a href="https://github.com/emhl" alt="Github">
          <img src="icons/github.svg" alt="github" class="icon">
        </a>
        <a href="https://discord.com/users/191502482696830976" alt="Discord">
          <img src="icons/discord.svg" alt="discord" class="icon">
        </a>
        <a href="https://t.me/EmhlS" alt="Telegram">
          <img src="icons/telegram.svg" alt="telegram" class="icon">
        </a>
      </div>
    </div>
  </body>
</html>
Why this matters: This content directly influences how AI models describe your organization, products, and services. Review it for accuracy, brand alignment, and competitive positioning. If no llms.txt exists, AI models rely on whatever they can scrape — with no editorial control.
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.

2b425dd7136bd631a11fbb832fbfc2f6e1409f17dab9122397613c253518d740a4ea27980e808e951f87f8087e8c93a99dc8efa3564b2ffbd64aa5bafece940f
12 RFCs evaluated · DNS state at 16 Mar 2026, 15:58 UTC