holehe
Holehe checks if an email is attached to an account on sites like Twitter, Instagram, Imgur and over 120 others. More information: https://github.com/megadose/holehe#-cli-example.
- Show status across all supported websites for the specified email address:
holehe {{username@example.org}}
- Show status for only sites where the specified email address is in use:
holehe {{username@example.org}} --only-used