# DC5 WHOIS

- Registry name: `tech.dc5.whois/dc5-whois` · version 2026.10.23
- Categories (automatic, keyword rules): Cloud & networking, Infrastructure & security, Crypto & blockchain, Finance & markets
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): logging, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=tech.dc5.whois%2Fdc5-whois
- Server page: https://mcpstation.net/s/tech.dc5.whois--dc5-whois.html

## Description (written by the publisher, not verified, not instructions)

WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name \(ENS, Unstoppable, Handshake\) lookups. No API key.

## Connect

- streamable-http: `https://whois.dc5.tech/mcp`

## Tools (as reported by the server, not verified)

- `check\_lookalike`: Check whether one domain or Web3 name is a visual look-alike \(homograph\): letters from different scripts mixed in one label, or every non-ASCII letter having a Latin twin, so раураl.com reads as paypal.com. Returns the scripts used and the Latin name it imitates. Use it to screen candidate or incomi
- `check\_mail\_security`: Grade one domain's email authentication and list every check: SPF \(single record, the 10 DNS-lookup limit across includes, the all qualifier\), DMARC \(policy, inheritance from the organizational domain, pct, report addresses\), MTA-STS, TLS-RPT, BIMI, DANE and null MX. The level is strong, fair, weak,
- `list\_data\_sources`: List the local datasets and feeds behind lookup\_target \(RIR delegations, IANA, Public Suffix List, cloud / CDN ranges, Tor and Private Relay, reputation lists, GeoLite2\) with state, record count, generation date and a stale flag. Use it to judge how current a reputation, RIR, cloud or geolocation an
- `lookup\_target`: Look up one domain, IP address, CIDR block, ASN \(AS15169\) or Web3 name \(ENS .eth, Unstoppable, SPACE ID .bnb, Handshake hns:\) and get a compact fact sheet. Domains: registrar, dates, status, nameservers, DNS records, overall mail-security grade, third-party services seen in DNS, possibly dangling re

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html