Whoxy provides a WHOIS API for looking up domain registration records from a database of historical records.
RDAP
vsSD Finder
RDAP vs SD Finder
How do RDAP and SD Finder compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | RDAP | SD Finder |
|---|---|---|
| What it is | Look up domain, IP, autonomous system, and entity records with RDAP.org RDAP-based lookup tool. | Scan a domain for subdomains with Subdomain Finder, which offers private scans that are not logged or indexed. |
| Website | ||
| Type | Online tool | Online tool |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | — |
| Alternatives |
Other options to consider
Sites similar to both RDAP and SD Finder.
Paid
24 alternativesDomain Digger looks up DNS, WHOIS, IP data, SSL history, and subdomains for a domain.
OSINT Toolkit page listing website, IP, domain, email and MAC lookup tools; some tools need a known identifier to run.
Look up DNS records and RDAP domain information with whois_, which supports common record types and network entities.
DNSlytics provides reverse IP, NS, MX, WHOIS, and domain lookup tools.
IWantMyName registers domain names across more than 500 extensions and offers related plugins.



