1
RDAP
client.rdap.orgAlso covers dns lookup and domain ip dns · same kind of online tool
Look up domain, IP, autonomous system, and entity records with RDAP.org RDAP-based lookup tool.
Alternatives
The Best whois Alternatives in 2026
24 alternatives1 free · 1 open source
Looking for something like whois? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 1 are open source.
Look up DNS records and RDAP domain information with whois_, which supports common record types and network entities.
Top picks at a glance
First suggestionRDAPLook up domain, IP, autonomous system, and entity records…Free or freemium optionCloudflare DNSCloudflare DNS provides public DNS resolution and…Open source optionCloudFlare DDNS UpdaterCloudflare DDNS Updater updates dynamic DNS records so…Another optionWhoisThis Whois command-line tool looks up DNS and RDAP records…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | RDAP | — | Not stated | Web |
| 2 | Whois | — | Not stated | — |
| 3 | Whoxy | Paid | Not stated | Web |
| 4 | digger.tools | — | Not stated | Web |
| 5 | Whois Search | — | Not stated | Web |
| 6 | Free online network tools | — | Not stated | Web |
| 7 | CloudFlare DDNS Updater | — | Yes | Linux, macOS |
| 8 | Whois | Paid | Not stated | Web |
| 9 | dnslytics | — | Not stated | Web |
| 10 | GreyNoise Intelligence | — | Not stated | Web |
All whois alternatives
2
Whois
github.com/b1s4/whoisAlso covers dns lookup and domain ip dns
This Whois command-line tool looks up DNS and RDAP records for a domain.
3
Also covers dns lookup and domain ip dns · same kind of online tool
Whoxy provides a WHOIS API for looking up domain registration records from a database of historical records.
4
digger.tools
digger.toolsAlso covers dns lookup and domain ip dns · same kind of online tool
Domain Digger looks up DNS, WHOIS, IP data, SSL history, and subdomains for a domain.
5
Whois Search
webwhois.verisign.com/webwhois-ui/index.jsp?la…Also covers dns lookup and domain ip dns · same kind of online tool
Verisign Whois Search provides information about domain name registrations, including .com and .net records.
6
Free online network tools
centralops.net/coAlso covers dns lookup and domain ip dns · same kind of online tool
Central Ops offers network diagnostic tools including traceroute, nslookup, and WHOIS lookups.
7
Also covers dns lookup and domain ip dns · open source
Cloudflare DDNS Updater updates dynamic DNS records so users can reach a home network through a custom domain.
8
Also covers dns lookup and domain ip dns · same kind of online tool
Check domain registration details and availability with Whois.com, which also sells domain names and hosting.
9
dnslytics
dnslytics.comAlso covers dns lookup and domain ip dns · same kind of online tool
DNSlytics provides reverse IP, NS, MX, WHOIS, and domain lookup tools.
10
GreyNoise Intelligence
greynoise.io/vizAlso covers dns lookup and domain ip dns · same kind of online tool
GreyNoise Intelligence analyzes untargeted internet scanning and provides context about IP addresses seen probing networks.
11
Netlas:
netlas.ioAlso covers dns lookup and domain ip dns · same kind of online tool
Netlas provides search tools for internet infrastructure, including DNS, WHOIS, and IP lookups.
12
IWantMyName
iwantmyname.comAlso covers dns lookup and domain ip dns · same kind of online tool
IWantMyName registers domain names across more than 500 extensions and offers related plugins.
13
Domainr
domainr.comAlso covers dns lookup and domain ip dns · same kind of online tool
Domainr searches domain names and provides an API covering top-level domains.
14
SD Finder
subdomainfinder.c99.nlAlso covers dns lookup and domain ip dns · same kind of online tool
Scan a domain for subdomains with Subdomain Finder, which offers private scans that are not logged or indexed.
15
Website Information
one-plus.github.io/WebsiteInformationAlso covers dns lookup and domain ip dns · same kind of online tool
OSINT Toolkit page listing website, IP, domain, email and MAC lookup tools; some tools need a known identifier to run.
16
DomainTyper
domaintyper.comAlso covers dns lookup and domain ip dns · same kind of online tool
DomainTyper searches for available domain names across extensions as users type.
17
Also covers dns lookup and domain ip dns · same kind of online tool · free
Cloudflare DNS provides public DNS resolution and authoritative DNS services.
18
IP search - Network Entity Reputation Database
nerd.cesnet.cz/nerd/ipsAlso covers dns lookup and domain ip dns
Network Entity Reputation Database lets users search IP details and reputation information through its interface.
19
Pyfunceble
pyfunceble.github.ioAlso covers dns lookup and domain ip dns · same kind of online tool
PyFunceble checks whether domains, IP addresses, and URLs are available or syntactically valid.
20
Domain Tools
whois.domaintools.comAlso covers dns lookup and domain ip dns
DomainTools provides WHOIS lookups, domain availability searches, IP history, traffic data, and other domain research information.
21
redirect.name
redirect.nameAlso covers dns lookup and domain ip dns
Set up DNS-based URL redirects with redirect.name using DNS records, without a server or dashboard.
22
Wappalyzer
wappalyzer.com/lookupAlso covers dns lookup and domain ip dns · same kind of online tool
Wappalyzer identifies technologies used to build websites, showing frameworks, analytics, and hosting components.
23
Website search tool
aware-online.com/en/osint-tools/website-search…Also covers dns lookup and domain ip dns · same kind of online tool
Website search tool provides OSINT utilities for investigating a website and its associated infrastructure.
24
Merklemap
merklemap.comAlso covers dns lookup and domain ip dns · same kind of online tool
Find subdomains and certificates linked to a website with Merklemap search and enumeration tools.
No alternatives match this filter.
Alternatives to similar tools
Cloudflare DNS24 alternativesNetlas:24 alternativesRDAP24 alternativesFree online network tools24 alternativesCloudFlare DDNS Updater24 alternativesIWantMyName24 alternatives
What is the best alternative to whois?
Based on features, tags and platforms, the closest alternatives to whois are RDAP, Whois, and Whoxy.
Is there a free alternative to whois?
Yes. Cloudflare DNS is free or offer a free plan.
Are there open-source alternatives to whois?
Yes: CloudFlare DDNS Updater.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative