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DNSlytics vs Who.is: catalog facts
DNSlytics	Who.is
Freemium Free tools on the website; premium website access, monitoring and the API are paid monthly…	Freemium Lookups are free; domain history reports and monitoring are paid services.
Web	Web
Reverse IP, name server and mail server lookups in one place More than ten years of historical DNS data	WHOIS, RDAP, DNS and IP lookups in one site Reverse nameserver lookup
Page views and features are limited without a premium plan IP and DNS data is refreshed every 14 days rather than live	Full domain history requires a paid report Monitoring is a premium service
Web application, Hosted service	Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.