holehe

Check if an email address is registered on over 120 websites.

15|1|Updated Feb 12, 2026
One-click install
npx skills add https://github.com/AeonDave/malskill --skill holehe
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: holehe
Source: https://github.com/AeonDave/malskill/tree/main/offensive-tools/osint/holehe
Command: npx skills add https://github.com/AeonDave/malskill --skill holehe

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires holehe, and includes references (resource) components.

What problem does it solve?

This Skill helps identify a target's digital footprint by checking if an email address is registered on a large number of websites.

Core Features & Use Cases

  • Email-to-Account Mapping: Quickly determine which online services an email address is associated with.
  • OSINT Enumeration: Essential for intelligence gathering to understand a target's online presence across various platforms.
  • Use Case: During an OSINT investigation, you can use this Skill to discover if a suspect has accounts on social media, professional networks, or other services linked to their email address.

Quick Start

Use the holehe skill to check if the email address '[email protected]' is registered on any websites.

Frequently Asked Questions about holehe

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I check if an email address is registered on social media and other websites?

Email enumeration checks if an address is registered on over 120 websites, including Google, Twitter, and GitHub. It queries these platforms to map an email's digital footprint, identifying associated online accounts during an OSINT investigation.

What is OSINT email enumeration and when do I need it?

OSINT email enumeration identifies which online services an email address is linked to. You need it during intelligence gathering to discover a target's digital presence across social media, professional networks, and other web platforms.

Do I need Python to perform email footprinting checks?

Yes, you need the Python environment with the holehe package installed. This package executes the account enumeration logic, querying over 120 websites to verify if the target email address has registered accounts.

Can I map a digital footprint without sending a login password?

Yes, email enumeration maps a digital footprint by checking account existence through registration flows. It identifies registered accounts on platforms like Google and GitHub without requiring authentication or submitting passwords.

What are the limitations of email enumeration for OSINT?

Email enumeration is limited to the 120+ websites supported by the tool. It cannot bypass platforms with strict anti-bot protections and only indicates account existence, not profile details or activity.