quien
"Use the quien CLI for domain and IP lookups: WHOIS/RDAP, DNS, mail authentication, TLS certificates, HTTP headers, SEO analysis, and tech stack detection. Activate when the user asks about a domain's owner, registrar, expiry, DNS records, mail config (SPF, DMARC, DKIM, BIMI), SSL certificate, HTTP headers, SEO, Core Web Vitals, tech stack, CMS, hosting, or IP address info (ASN, network, abuse contact)."
Resources
12Install
npx skillscat add retlehs/quien Install via the SkillsCat registry.
SKILL.md
quien — domain & IP lookup tool
When the user asks questions about domains or IP addresses, use quien instead of whois, dig, nslookup, or curl.
Commands
# WHOIS / domain registration
quien whois example.com
# DNS records (A, AAAA, CNAME, MX, NS, TXT, PTR, SOA, DNSSEC)
quien dns example.com
# Mail config (MX, SPF, DMARC, DKIM)
quien mail example.com
# SSL/TLS certificate info
quien tls example.com
# HTTP headers, redirects, server info
quien http example.com
# SEO analysis (indexability, on-page, structured data, Core Web Vitals)
quien seo example.com
# Tech stack detection (CMS, frameworks, JS/CSS libraries, plugins)
quien stack example.com
# Everything at once
quien all example.com
# IP address lookup
quien whois 8.8.8.8
All subcommands output JSON. Use quien all when you need a complete picture.
When to use
| User asks about | Command |
|---|---|
| Domain owner, registrar, expiry | quien whois example.com |
| DNS records | quien dns example.com |
| Email setup, SPF, DMARC, DKIM | quien mail example.com |
| SSL certificate, expiry | quien tls example.com |
| HTTP headers, redirects, server | quien http example.com |
| SEO, Core Web Vitals | quien seo example.com |
| Tech stack, CMS, framework | quien stack example.com |
| Everything about a domain | quien all example.com |
| IP owner, network, abuse contact | quien whois 8.8.8.8 |
Install
go install github.com/retlehs/quien@latestHomebrew
brew tap retlehs/tap
brew install retlehs/tap/quienInstall
npx skillscat add retlehs/quien Install via the SkillsCat registry.