This server provides live domain intelligence and security analysis tools, enabling comprehensive investigation of any domain's registration, DNS, SSL, security posture, and reputation.
WHOIS Lookup – Retrieve registrar info, creation/expiry/updated dates, registrant country, privacy/redaction status, and nameservers.
DNS Records – Resolve A, AAAA, MX, TXT, NS, CNAME, and CAA records; check for SPF/DMARC presence and detect common DNS misconfigurations.
SSL/TLS Certificate Inspection – Examine live TLS certificates for validity, issuer, subject, expiration date, days remaining, protocol/cipher details, and warnings.
HTTP Security Headers Analysis – Fetch and score security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy) with actionable recommendations.
Domain Reputation Check – Check domains/IPs against DNS blocklists (DNSBL, Spamhaus) and receive a reputation score along with any active listings.
Subdomain Discovery – Discover subdomains via Certificate Transparency logs (crt.sh) and common-prefix probing, with DNS resolution status for each result.
Full Domain Report – Run all analyzers in parallel (WHOIS, DNS, SSL, security headers, reputation, subdomains) and get a combined report with an overall security score rated A+ to F.
Email Header Analysis – Parse raw email header blocks to extract SPF/DKIM/DMARC results, delivery path with timing, envelope fields, and spoofing flags.
An MCP server that gives AI agents live domain intelligence: WHOIS, DNS, SSL/TLS, HTTP security headers, reputation, and subdomain discovery for any domain. It is the same analysis engine that powers DomainIntel.app.
Tool | Returns |
| Registrar, creation/expiry/updated dates, registrant country, privacy status, nameservers |
| A, AAAA, MX, TXT, NS, CNAME, CAA records + SPF/DMARC presence + misconfiguration warnings |
| Validity, issuer, expiration, days remaining, protocol, warnings |
| HSTS, CSP, X-Frame-Options and others, scored with recommendations |
| DNSBL / Spamhaus blocklist checks and a reputation score |
| Subdomains via Certificate Transparency logs and common-prefix probing |
| Every analyzer at once plus an overall A+ to F security score |
| Parses a raw email header block: SPF/DKIM/DMARC results, the Received delivery path with timing, key envelope fields, and a From-vs-Return-Path spoofing flag |
Every tool except analyze_email_headers takes a single domain argument; protocol, www., and paths are stripped automatically. analyze_email_headers takes a headers string (a pasted raw header block) instead.
Related MCP server: Domain-MCP
Node.js 18 or newer
claude mcp add domainintel -- npx -y @domainintel/mcpAdd to claude_desktop_config.json (Settings → Developer → Edit Config):
{
"mcpServers": {
"domainintel": {
"command": "npx",
"args": ["-y", "@domainintel/mcp"]
}
}
}The server speaks MCP over stdio:
npx -y @domainintel/mcp"Run a full domain report on stripe.com"
"What are the MX records for github.com, and does it have DMARC?"
"Is the SSL certificate for example.org close to expiring?"
Run from source (no build needed):
git clone <repo> && cd domainintel.app
npm install
npm run mcp # node mcp/server.mjsThe published package is a single self-contained bundle (the analyzers and all JS dependencies are bundled with esbuild; Node built-ins resolve at runtime).
npm run build:mcp # from repo root -> mcp/dist/server.mjs
cd mcp && npm publish # prepublishOnly rebuilds the bundleMIT
Unclaimed servers have limited discoverability.
If you are the server author, to access and configure the admin panel.
Domain & company intel for AI agents: RDAP, DNS, email deliverability, tech stack. No API keys.
Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.
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