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DNS Lookup

🔵 Stable🕐 updated 2026-07-18 🔷 SkillSpec L3 pm-live

Query DNS records and domain registration data with zero API keys — DNS-over-HTTPS via dns.google and domain registration via RDAP, through plain curl. Use when asked what does this domain resolve to, check the MX or TXT records, who registered this domain, when does it expire, or has DNS propagated. Produces the records decoded (SPF/DKIM/DMARC read, not just dumped), the registration facts from RDAP, and the rerunnable commands.

▶ Run it free — no key needed 📝 Grade your existing draft View SKILL.md ↗

What to give it

The domain — and the record type if the question implies one ("where's mail going" → MX; "is the site moved" → A/CNAME; "verify ownership token" → TXT)
The scenario — propagation check, email debugging, domain due-diligence, expiry watch — the decode leads with it

✅ The bar it holds itself to

Every skill in this library self-verifies — these are this skill's own quality checks, straight from its definition.

The decode leads — the provider/policy in words before the record table
SPF/DMARC strings are read out, not just quoted
Propagation answers compare two resolvers and quote TTL
RDAP redaction is stated as normal, not as a finding
Every answer carries its rerunnable curl

⚠️ What it refuses to do

Do not dump records without decoding — the MX hostname is a clue, the provider name is an answer
Do not answer from memory — DNS is live by definition; fetch or hand over the command
Do not promise global propagation — resolvers cache; frame it as major-resolvers + TTL
Do not treat redacted WHOIS/RDAP contacts as suspicious — it's the post-privacy default
Do not slide into recon — decoding your domain's mail setup and enumerating someone else's infrastructure are different activities, and this skill does the first

Install

npx pm-claude-skills add --agent claude   # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y pm-claude-skills-mcp

Related skills

🔌 Embed this skill

Drop this on your blog, docs, or site — it renders a "Run this skill" card:

<div data-pm-skill="dns-lookup"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>

💬 Discussion

DNS Lookup is one of 599 open-source professional AI agent skills — all SkillSpec L3. Try them all in the browser · ⭐ Star on GitHub · Browse the full catalog