# NsLookup.io

> Use this tool when you need to perform comprehensive DNS record lookups, diagnose security issues, and monitor domain uptime across multiple global DNS servers. It solves problems related to domain configuration, security, and performance by checking DNS records, SSL/TLS certificates, and security protocols like SPF, DKIM, and DMARC. It accepts domain names as input and provides detailed reports on DNS records, security scans, and uptime monitoring as output.

Canonical page: https://skillsregistry.net/skills/nslookup-io  
JSON: https://api.skillsregistry.net/v1/skills/nslookup-io

## Description

Performs DNS record lookups across 53 record types and 18+ global DNS servers, checks SSL/TLS certificates, scans for security issues like misconfigured SPF/DKIM/DMARC, and monitors domain uptime. Supports propagation checks across Cloudflare, Google, Quad9, and regional nameservers.

## Trust

- **Trust score (0–1):** 0.92
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** cloud-infra
- **Updated:** 2026-09-19

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/nslookup-io)
- **Repository:** <https://github.com/nslookup-io/nslookup-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "nslookup-io"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nslookup-io` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nslookup-io/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt