Domain Insights

Analyze domain infrastructure by performing comprehensive DNS, WHOIS, and security audits.

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What it can do

  • Domain Report: Get a complete domain intelligence report. Runs ALL checks at once: DNS, WHOIS, email security, SSL, HTTP headers, tech stack detection, and domain age. This is the recommended starting
  • Dns Lookup: Look up DNS records (A, AAAA, MX, TXT, NS, CNAME, or ALL) for any domain.
  • Whois Lookup: Get WHOIS registration data for a domain including registrar, creation/expiry dates, and days remaining.

What data it sees

Do you need an account

No: the server works without sign-in

Analyze domain infrastructure by performing comprehensive DNS, WHOIS, and security audits. Identify technology stacks, track SSL validity, and verify email security configurations to ensure optimal web presence. Monitor global DNS propagation and discover subdomains to gain a complete picture of any domain's health and history.

How to connect

How to connect Domain Insights to Claude

The server address to paste into Claude settings:

https://domain-lookup--dynamycsound.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Domain Insights to ChatGPT

The server address to paste into ChatGPT settings:

https://domain-lookup--dynamycsound.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Domain Insights to Cursor

The server address to paste into Cursor settings:

https://domain-lookup--dynamycsound.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (15)

Raw names from tools/list. Only developers need these.

domain_reportGet a complete domain intelligence report. Runs ALL checks at once: DNS, WHOIS, email security, SSL, HTTP headers, tech stack detection, and domain age. This is the recommended starting tool.
dns_lookupLook up DNS records (A, AAAA, MX, TXT, NS, CNAME, or ALL) for any domain.
whois_lookupGet WHOIS registration data for a domain including registrar, creation/expiry dates, and days remaining.
domain_availableCheck whether a domain is available for registration. Suggests alternative TLDs if the domain is taken.
email_config_checkAudit email security configuration: MX, SPF, DKIM (common selectors), and DMARC records. Returns a letter grade A–F.
ssl_checkCheck SSL/TLS certificate details for a domain: issuer, validity dates, days remaining, protocol, and fingerprint.
reverse_dnsReverse DNS lookup — convert an IP address to its hostname(s), or find the IP behind a domain and do reverse lookup.
dns_propagationCheck if DNS has propagated by querying 8 public resolvers worldwide (Google, Cloudflare, OpenDNS, Quad9, etc.).
subdomain_finderDiscover common subdomains for a domain by checking ~80 common subdomain prefixes.
http_headers_checkAudit HTTP security headers (HSTS, CSP, X-Frame-Options, etc.) and give a letter grade A–F.
redirect_chainTrace the full redirect chain for a URL. Shows every redirect hop, status code, and final destination.
tech_stack_detectDetect the technology stack of a website: web server, CDN, framework, CMS, analytics, and more.
domain_ageCalculate the exact age of a domain and show its registration timeline.
dns_compareCompare DNS records of two domains side by side. Useful for comparing setups or verifying migration.
port_checkCheck if common network ports are open on a domain. Useful for verifying services are running.