| name | quien |
| description | Use this skill when the user wants to perform WHOIS lookups, DNS queries, mail configuration audits, SSL/TLS certificate checks, IP address lookups with ASN information, SEO analysis, or tech stack detection for domains. |
quien Plugin
A better WHOIS lookup tool with JSON output and scripting subcommands.
Commands
Domain Lookup
quien example.com — Domain WHOIS lookup (interactive TUI)
quien --json example.com — JSON output for scripting
IP Lookup
quien 8.8.8.8 — IP address lookup with reverse DNS, ASN, and abuse contacts
DNS Query
quien dns example.com — DNS lookup with JSON output
Mail Audit
quien mail example.com — Mail configuration audit (MX, SPF, DMARC, DKIM, BIMI with VMC chain validation)
TLS Query
quien tls example.com — SSL/TLS certificate information
HTTP Query
quien http example.com — HTTP headers and tech stack detection
SEO Analysis
quien seo example.com — SEO analysis with Core Web Vitals (requires QUIEN_CRUX_API_KEY for field data)
Tech Stack
quien stack example.com — Tech stack detection including WordPress plugins, JS/CSS frameworks
ASN Lookup
quien ip <asn> — ASN lookup with PeeringDB enrichment
Usage Examples
- "Check WHOIS info for a domain"
- "Audit mail configuration for SPF, DKIM, DMARC"
- "Get SSL certificate details"
- "Find ASN and network info for an IP"
- "Analyze SEO and Core Web Vitals"
Installation
brew tap retlehs/tap
brew install retlehs/tap/quien
Key Features
- RDAP-first lookups with WHOIS fallback for broad TLD coverage
- IANA referral for automatic WHOIS server discovery
- Mail configuration audit — MX, SPF, DMARC, DKIM, and BIMI with VMC chain validation
- SEO analysis — indexability, on-page, structured data, Core Web Vitals
- Tech stack detection including WordPress plugins and JS/CSS frameworks
- IP lookups with reverse DNS, network info, abuse contacts, and ASN discovery via RDAP
- BGP fallback for origin ASN/prefix when RDAP does not include ASN data
- PeeringDB enrichment for ASN context
- JSON subcommands for scripting: dns, mail, tls, http, seo, stack, all