ofershap DNS Lookup via MCP
Use this skill when you need to look up DNS records, perform reverse DNS, check WHOIS data, or verify nameservers. Zero auth required.
Available Tools
| Tool | What it does |
|---|---|
dns_lookup |
Look up A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, or PTR records |
reverse_dns |
Reverse DNS (PTR) lookup on an IP address |
resolve_all |
Resolve A, AAAA, MX, TXT, NS, CNAME in one call |
check_nameservers |
Get nameserver (NS) records for a domain |
whois |
Query WHOIS data (follows IANA referrals to registrar) |
Workflow
- For general domain investigation: start with
resolve_allto see everything at once - For specific record types: use
dns_lookupwith thetypeparameter - For IP investigation: use
reverse_dnsto find the hostname - For domain ownership: use
whois
Key Patterns
dns_lookupwithtype: "MX"is the go-to for email delivery debuggingresolve_allreturns all common record types in one call — most efficient for initial investigationwhoisfollows IANA referrals automatically, so it works for any TLD- No API keys or auth needed — uses Node.js built-in DNS and public WHOIS servers