# Dns Resolver

> Perform detailed DNS lookups, check record types, and verify DNS propagation across multiple servers.

- Skill: `johnalbertini14-glitch/dns-resolver` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add johnalbertini14-glitch/dns-resolver`
- Raw SKILL.md: https://api.skillmd.com/api/skills/johnalbertini14-glitch/dns-resolver/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: johnalbertini14-glitch (https://skillmd.com/u/johnalbertini14-glitch)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/johnalbertini14-glitch/dns-resolver

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# DNS Lookup

Query and analyze DNS records for any domain.

## Capabilities

- **Record Lookup**: Query A, AAAA, MX, TXT, CNAME, NS, SOA, PTR records
- **Propagation Check**: Query multiple public DNS servers to verify propagation
- **Reverse DNS**: Look up PTR records for IP addresses
- **WHOIS**: Basic domain registration info

## Usage

Ask the agent to:
- "Look up DNS records for example.com"
- "Check MX records for gmail.com"
- "Has DNS propagated for newsite.com?"
- "Reverse DNS lookup for 8.8.8.8"

## How It Works

Uses `dig`, `nslookup`, and `whois`:

```bash
dig example.com ANY +noall +answer
dig @8.8.8.8 example.com A
dig @1.1.1.1 example.com A
dig -x 8.8.8.8
```

## Requirements

- `dig` or `nslookup` (from `dnsutils`/`bind-utils`)
- Optional: `whois`
- No API keys needed