WHOIS
WHOIS is one of the data sources (Modules) UserSearch can run your search against. Current and historical domain ownership registration data plus reverse-WHOIS by email (inferred provider behind Website Domain Ownership).
What it powers in UserSearch
Section titled “What it powers in UserSearch”WHOIS is available under these search type(s): Website. When you run one of those searches, UserSearch can query WHOIS as one of its Modules — on its own, or bundled with other data sources through OneScan.
What it returns
Section titled “What it returns”Current and historical domain ownership registration data plus reverse-WHOIS by email (inferred provider behind Website Domain Ownership).
Official site
Section titled “Official site”Not publicly confirmed.
Verified against UserSearch v2.0.20