megadose/holehe
holehe allows you to check if the mail is used on different sites like twitter, instagram and will retrieve information on sites with the forgotten password function.
2 best points · 0 comments · 1 Hacker News post · 15,563 GitHub stars · View on GitHub
Hacker News discussions
- Efficiently finding registered accounts from emails (2 points, 0 comments, by diogenesjunior, 2022-01-19)