isitdns MCP MCP server

An official MCP server for isitdns that allows AI agents to audit domain resolution and DNS health. It provides tools to check if a domain resolves, perform comprehensive domain audits including DNSSEC and mail posture, trace delegation paths, sweep authoritative nameservers, and verify DNSSEC chains. It refuses queries for private/internal names and supports multiple transport methods including Streamable HTTP.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by isitdns

MCP endpoint (Streamable HTTP)

https://isitdns.net/mcp

Vendor documentation

What you can do with it

Audit whether a domain resolves and identify why it might be failing
Check DNSSEC chain validity and identify broken links
Trace delegation from root servers to authority to verify health
Sweep authoritative nameservers to find configuration disagreements

Tools advertised by the last live check:

check_domain
dig
trace
dnssec_chain
sweep_domain
alias_chain
registration
path_receipt

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http isitdns-mcp https://isitdns.net/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add isitdns-mcp --url https://isitdns.net/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable isitdns-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "isitdns-mcp": {
      "url": "https://isitdns.net/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "isitdns-mcp": {
      "type": "streamableHttp",
      "url": "https://isitdns.net/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start isitdns-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "isitdns-mcp": {
      "type": "http",
      "url": "https://isitdns.net/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http isitdns-mcp https://isitdns.net/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "isitdns-mcp": {
      "url": "https://isitdns.net/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "isitdns-mcp": {
      "serverUrl": "https://isitdns.net/mcp"
    }
  }
}

See all 957

Do you run isitdns MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

Claim this listing