Nslookup

Name: Nslookup
Author: nslookup-io

by nslookup-iocommunityv1.3.0

This MCP server provides DNS lookups, SSL certificate checks, security scanning, GEO scoring, and domain intelligence via the Model Context Protocol.

From the registry: DNS lookups, health reports, SSL certs, security scans, GEO scoring, uptime checks

GitHub Repository

Install & configure

Install in your client

Paste into the AI you're chatting with — it will figure out the rest

Please install the `nslookup` MCP server into my current AI client (that's you).

Canonical MCP server config (stdio transport):
- command: `npx`
- args: ["-y","@nslookup-io/mcp-server"]
- optional environment variables:
  - `NSLOOKUP_API_URL`: Base URL for the nslookup.io API. (example: `https://www.nslookup.io`)

Note: Remote hosted alternative at https://mcp.nslookup.io/mcp (no auth required). Canonical/simplest path is npx for local stdio.

Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.

Note: Remote hosted alternative at https://mcp.nslookup.io/mcp (no auth required). Canonical/simplest path is npx for local stdio.

Tools (11)

dns_lookup

Look up all common DNS records (A, AAAA, NS, MX, TXT, CNAME, SOA) for a domain

dns_record

Look up a specific DNS record type — supports all 53 types (HTTPS, DNSKEY, TLSA, SPF, etc.)

dns_propagation

Check DNS propagation across 18+ global servers (Cloudflare, Google, Quad9, regional, authoritative)

webservers

Get IPv4 and IPv6 addresses for a domain

dns_health

Run a DNS health audit (39 checks across DNSSEC, MX, hygiene, TTL, nameservers, CAA, operational maturity) with severity-weighted scoring

ssl_certificate

Check SSL/TLS certificate — issuer, expiry, chain validity, cipher strength, SAN domains, TLS version

bimi_vmc

Check BIMI record and VMC (Verified Mark Certificate) — logo URL, trademark info, certificate expiry

security_scan

Scan a domain for security issues — SPF/DKIM/DMARC, cookie security, DNS misconfigurations

uptime_check

One-time HTTP uptime check — status, response time, HTTP status code

uptime_check_multi

Check if a site is up from 7 global locations — Amsterdam, Sydney, London, Frankfurt, Delhi, Warsaw, South Carolina

geo_checker

Check a domain's GEO (Generative Engine Optimization) score — AI crawler access, structured data, entity signals, content extractability, and prioritized recommendations