Holehe — Email Checker GuideStep-by-step Holehe reference: check if YOUR email is registered across 120+ sites. Educational use only.FAQ

What is Holehe?

Holehe (from the French hors ligne) checks whether one email address is registered on 120+ sites — social, shopping, streaming — by probing each site's signup and recovery flows. It shows how widely a single inbox is spread.

Is Holehe illegal?

It automates public registration checks. Use it only on your own addresses or permitted targets — probing someone else's email to map their accounts is unauthorized recon, and using results to take over accounts is a crime.

How do I check my own email?

holehe your@email.com lists every site where the address is registered. Run it on each inbox you own, then secure or close what you forgot existed.

What does the star rating mean?

Each module has a reliability rating: more stars means the registered/not-registered signal is trustworthy. One-star results deserve a manual check before you act on them.

How is this different from Have I Been Pwned?

HIBP tells you if your address appeared in known breaches. Holehe tells you where the address is registered — breached or not. Run both: registration map plus breach check equals full exposure.

Why do results change between runs?

Sites alter their signup flows and bot defenses constantly, breaking modules until Holehe updates. Pull the latest version and treat flaky modules as hints, not verdicts.

Can sites block Holehe?

Yes — CAPTCHAs, rate limits and changed endpoints stop modules. That friction is also defense advice: bot-resistant signup flows protect your users the same way.

How do I reduce my email exposure?

Use aliases or plus-addressing per service, close dead accounts, put 2FA on the inbox itself, and monitor breaches. One leaked password then unlocks exactly one site — ideally none.

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