
Archived
WhoDat
Pivotable Reverse WhoIs / PDNS Fusion with Registrant Tracking & Alerting plus API for automated queries (JSON/CSV/TXT)
api-securitydata-exfiltrationdns-analysis+5
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Search (offline) if your password (NTLM or SHA1 format) has been leaked (HIBP passwords list v8)

crawls the website and finds broken social media links that can be hijacked

Telegram OSINT tool for user, group and message investigation