Description: LeakBase is a database of leaked emails and passwords that can be searched to see if your information has been compromised. It is controversial because the data was obtained illegally, though some argue it serves a public good by allowing people to check if their data is secure.
Type: software
Description: Robtex is a free online tool that provides various utilities for investigating IP addresses, domains, autonomous system numbers (ASNs) and more. It offers whois lookups, DNS information, routing data, hosting details and network ownership records.
Type: software
Pricing: Free