MCP serverTool reference
check_dns
Live DNS lookup — read-only
Queries public DNS-over-HTTPS resolvers for a domain's A/AAAA/CNAME/MX/TXT/NS records right now, via inetGeek's own rate-limited lookup endpoint. Nothing queried is stored.
This tool is read-only.
Arguments
| Argument | Type | Required | What it does |
|---|---|---|---|
domain | string | yes | e.g. "example.com" |
Example
Arguments:
{
"domain": "example.com"
}The server's answer on 2026-10-25:
{"domain":"example.com","found":true,"checkedAt":"2026-10-25T06:50:35.003Z","resolver":"cloudflare","dnssec":"validated","a":[{"value":"172.66.147.243","ttl":289},{"value":"104.20.23.154","ttl":289}],"aaaa":[{"value":"2606:4700:10::ac42:93f3","ttl":191},{"value":"2606:4700:10::6814:179a","ttl":191}],"cname":[],"mx":[{"priority":0,"host":".","ttl":164}],"ns":[{"value":"hera.ns.cloudflare.com","ttl":75259},{"value":"elliott.ns.cloudflare.com","ttl":75259}],"spf":"v=spf1 -all","dmarc":"v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s","ttl":164}