whoiser is a WHOIS client for Node.js than helps with querying WHOIS servers for TLDs, domain names, AS numbers and IPs.

Has support for auto-discovery WHOIS servers for TLDs and IPs allocators, making it easy to get WHOIS info with a single call like whoiser('google.com') or whoiser('1.1.1.1'). Applies minimal parsing to results, returning same data format from different WHOIS servers.

• Returns WHOIS info for any internet address
• Requires zero config, but configurable when needed
• Recognises queries and routes the request to correct server
• Minimal parsing to provide consistent results across WHOIS servers
• Uses WHOIS servers from IANA, if not provided
• Discover all available TLDs

npm i whoiser

The library has a simple API. Use whoiser(query) with any query you would want OR use specific functions with options like whoiser.domain(domain, {options}), whoiser.ip(ip, {options})

const whoiser = require('whoiser')

const domainWhois = whoiser('google.com')
const tldWhois = whoiser('.net')
const ipWhois = whoiser('1.1.1.1')

• whoiser(query, options) - Get WHOIS data for any internet address
• whoiser.domain(domain, options) - Get parsed WHOIS data for a domain
• whoiser.tld(tld, options) - Get WHOIS data for a TLD
• whoiser.asn(asn, options) - Get WHOIS data for an AS number
• whoiser.ip(ip, options) - Get WHOIS data for a IP
• whoiser.allTlds - Returns a list of all TLDs, downloaded from IANA
• whoiser.query(options) - Query a WHOIS server for data

Get WHOIS info for domains.

whoiser.domain(domain, options): Promise<Object<whoisServer>>

• domain - Domain name, excluding any subdomain. Ex: 'google.com'
• options - Object of options to use, all optional:
  • host - WHOIS server to query. Default: WHOIS server from IANA
  • timeout - WHOIS server request timeout in ms. Default: 1500
  • follow - How many WHOIS server to query. 1 = registry server (faster), 2 = registry registrar (more domain details). Default: 2
  • raw - Return the raw WHOIS result in response. Added to __raw

const whoiser = require('whoiser');

(async () => {

	// WHOIS info from Registry (Verisign) AND Registrar (MarkMonitor) whois servers
	let domainInfo = await whoiser('google.com')

	// OR with options for whois server and how many WHOIS servers to query
	let domainInfo2 = await whoiser.domain('blog.google', {host: 'whois.nic.google', follow: 1})

	console.log(domainInfo, domainInfo2)
})();

Returns a promise which resolves with an Object of WHOIS servers checked:

{
		"whois.verisign-grs.com": {
				"Domain Name": "GOOGLE.COM",
				"Registrar WHOIS Server": "whois.markmonitor.com",
				...
		},
		"whois.markmonitor.com": {
				"Domain Name": "google.com",
				"Creation Date": "1997-09-15T00:00:00-0700",
				"Expiry Date": "2020-09-13T21:00:00-0700",
				"Registrar": "MarkMonitor, Inc.",
				"Domain Status": [
						"clientUpdateProhibited",
						"clientTransferProhibited"
				],
				...
				"Name Server": [
						"ns1.google.com",
						"ns2.google.com"
				],
				"text": [
						"For more information on WHOIS status codes, please visit:",
						...
				]
		}
}

Get WHOIS info for IPs

whoiser.ip(ip, options): Promise<Object>

• ip - IP. Ex: '1.1.1.1'
• options - Object of options to use, all optional:
  • host - WHOIS server to query. Default: WHOIS server from IANA
  • timeout - WHOIS server request timeout in ms. Default: 1500
  • raw - Return the raw WHOIS result in response. Added to __raw

const whoiser = require('whoiser');

(async () => {

	// WHOIS info with auto-discovering for WHOIS server
	let ipInfo = await whoiser('1.1.1.1')

	// OR with options for whois server
	let ipInfo2 = await whoiser.ip('8.8.8.8', {host: 'whois.arin.net'})

	console.log(ipInfo, ipInfo2)
})();

Returns a promise which resolves with an Array of WHOIS info lines:

{
	range: '2606:4700:: - 2606:4700:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF',
	route: '2606:4700::/32',
	NetName: 'CLOUDFLARENET',
	NetHandle: 'NET6-2606-4700-1',
	Parent: 'NET6-2600 (NET6-2600-1)',
	NetType: 'Direct Allocation',
	asn: 'AS13335',
	Organization: 'Cloudflare, Inc. (CLOUD14)',
	RegDate: '2011-11-01',
	Updated: '2017-02-17',
	Comment: 'All Cloudflare abuse reporting can be done via  https://www.cloudflare.com/abuse',
}

Get WHOIS info for an AS number

whoiser.asn(asn, options): Promise<Object>

• asn - ASN. Ex: 'AS15169' or 15169
• options - Object of options to use, all optional:
  • host - WHOIS server to query. Default: WHOIS server from IANA
  • timeout - WHOIS server request timeout in ms. Default: 1500
  • raw - Return the raw WHOIS result in response. Added to __raw

const whoiser = require('whoiser');

(async () => {

		// WHOIS info for ASN15169
		let whois = await whoiser.asn(15169)

		console.log(whois)
})();

Returns a promise which resolves with an Object of WHOIS info:

{
	ASNumber: '15169',
	ASName: 'GOOGLE',
	ASHandle: 'AS15169',
	RegDate: '2000-03-30',
	Updated: '2012-02-24',
	Ref: 'https://rdap.arin.net/registry/autnum/15169',
}

Aiming to have these features:

• helper function to query WHOIS servers -> whoiser.query()
• query whois for TLDs with parsed result -> whoiser.tld()
• query whois for domains with parsed result -> whoiser.domain()
• query whois for IPs and return parsed result -> whoiser.ip()
• query whois for ASN with parsed result -> whoiser.asn()
• Punycode support
• Normalize Domain WHOIS field names, removing inconsistencies between WHOIS servers
• Test more IPs and ASNs to deliver consistent WHOIS results

• .ch - WHOIS server for .ch doesn't return WHOIS info, works only in browser https://www.nic.ch/whois/. This library can be used only to check .ch domain availability, example here https://runkit.com/andreiigna/5efdeaa8e4f2d8001a00312d

Please report any issues here on GitHub. Any contributions are welcome

MIT

Copyright (c) Andrei Igna, Layered