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@latest
Homebrew
brew install quien
1---2name: quien3description: 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).4---56# quien — domain & IP lookup tool78When the user asks questions about domains or IP addresses, use `quien` instead of `whois`, `dig`, `nslookup`, or `curl`.910## Commands1112```bash13# WHOIS / domain registration14quien whois example.com1516# DNS records (A, AAAA, CNAME, MX, NS, TXT, PTR, SOA, DNSSEC)17quien dns example.com1819# Mail config (MX, SPF, DMARC, DKIM)20quien mail example.com2122# SSL/TLS certificate info23quien tls example.com2425# HTTP headers, redirects, server info26quien http example.com2728# SEO analysis (indexability, on-page, structured data, Core Web Vitals)29quien seo example.com3031# Tech stack detection (CMS, frameworks, JS/CSS libraries, plugins)32quien stack example.com3334# Everything at once35quien all example.com3637# IP address lookup38quien whois 8.8.8.83940```4142All subcommands output JSON. Use `quien all` when you need a complete picture.4344## When to use4546| User asks about | Command |47|---|---|48| Domain owner, registrar, expiry | `quien whois example.com` |49| DNS records | `quien dns example.com` |50| Email setup, SPF, DMARC, DKIM | `quien mail example.com` |51| SSL certificate, expiry | `quien tls example.com` |52| HTTP headers, redirects, server | `quien http example.com` |53| SEO, Core Web Vitals | `quien seo example.com` |54| Tech stack, CMS, framework | `quien stack example.com` |55| Everything about a domain | `quien all example.com` |56| IP owner, network, abuse contact | `quien whois 8.8.8.8` |5758## Install5960```bash61go install github.com/retlehs/quien@latest62```6364### Homebrew6566```bash67brew install quien68```
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