Owner identity
The person behind the inbox — full name and known aliases wherever the address ties back to a real identity in public records.
PUBLIC RECORDS · CROSS-REFERENCED · IN UNDER A MINUTE
Every mailbox has a backstory.
Pull every linked account, breach, and registered platform behind every email address.
Private — the person is never notified.
+300,000 searches run
1.24B records indexed
4.8 / 5 customer rating
What You'll See in a Report
Each email report pulls from billions of public records and breach archives. Here's what typically shows up when the inbox has a footprint.
Linked accounts
Profiles across the platforms this address signed up for — from the big networks to niche services that never show up in a normal search.
Registered services
The apps, stores, and subscriptions tied to the address, mapping out the digital footprint behind a single handle.
Breach & leak history
Every known breach the address has appeared in, with the incident and the data types exposed — so you know whether its password history is a liability today.
Linked phone numbers
Mobile and landline numbers that share public records with this email — another way to confirm who you're actually dealing with.
Deliverability & risk
Whether the inbox is live, disposable, or risky, with the SMTP provider and a quality score — context a signature line never gives you.
The teaser
This is what shows up the moment your search completes. Each row unlocks once you confirm the report.
Subject j•••••@•••••.com
Match confidence 88%
- Owner
- Location
- Social profiles
- Email addresses
- Breach records
Why Use Reverse Email Lookup?
You're about to reply to a cold message, unblock a signup, or meet someone from a dating app. Here are five moments a quick search pays for itself.
Who Sent That?
You get a cold outreach from an email you don't recognize. One search and you see the registered name, the company, and whether the address has turned up in known scams — before you reply.
Find an Old Contact
You have an old inbox in your contacts that bounced. One search and you see whether that person's digital trail points to a current way to reach them.
Verify Before You Engage
You're about to share a document, book a call, or make a payment based on an email. One search and you see the real person and company behind the address.
Spot Phishing Attempts
You get a message claiming to be from your bank, your boss, or a service you use. One search and you see whether the sending address actually belongs to them — or a scam campaign.
Audit Your Own Inbox
Want to know how exposed your email is? One search on your own address shows every breach it's appeared in — and which accounts need new passwords tonight.
How it works
A quick search across public sources returns a clear report — private and secure, with no notification to the person you searched.
Start a search
Enter a phone number, email or photo — that is all we need to begin searching public sources.
See the results
Get a clear report of the public profiles, records and other publicly available details we find.
Stay up to date
Choose to keep your report refreshed so you always have the latest public information available.
Example use cases
- 01 Cold email from an address you don't recognize? One search tells you who's really behind it before you reply.
- 02 About to share a document or send a payment? Verify the contact's real name and company behind the address first.
- 03 Worried your own inbox is exposed? Run it and see every breach it's appeared in — and which passwords to change tonight.
In our customers' own words.
Short stories from people who finally ran the number on whoisthis.
Three weeks of unknown calls from the same number. One trace and I had the name, a general location, and a linked social profile. Blocked the number and moved on with my day.
Sarah Mitchell Austin, TXLate-night nuisance calls were messing with my sleep. The trace surfaced enough detail for me to file a report and let the carrier handle it from there.
Michael Chen San Francisco, CAAgreed to meet a stranger from Marketplace for a used bike. Ran their number first — profile matched their listing exactly. Small thing, but it felt good to verify before driving across town.
Jennifer Adams Miami, FLKept thinking about a friend I hadn't spoken to in years. Had an old number in my phone. Plugged it in and the trace pointed me to where she'd relocated. Reached out the same day.
David Rodriguez Chicago, ILMy teenager was getting random DMs from a stranger. Ran the phone and the email attached. Turned out to be a spam profile. Had the conversation with her the same night.
Emily Thompson Seattle, WAMy mom kept getting the same scam call pattern. Ran the number, saw the scam database hits, reported it to the FTC. Small win but it felt good to have the paper trail.
Robert Kim New York, NYThree weeks of unknown calls from the same number. One trace and I had the name, a general location, and a linked social profile. Blocked the number and moved on with my day.
Sarah Mitchell Austin, TXLate-night nuisance calls were messing with my sleep. The trace surfaced enough detail for me to file a report and let the carrier handle it from there.
Michael Chen San Francisco, CAAgreed to meet a stranger from Marketplace for a used bike. Ran their number first — profile matched their listing exactly. Small thing, but it felt good to verify before driving across town.
Jennifer Adams Miami, FLKept thinking about a friend I hadn't spoken to in years. Had an old number in my phone. Plugged it in and the trace pointed me to where she'd relocated. Reached out the same day.
David Rodriguez Chicago, ILMy teenager was getting random DMs from a stranger. Ran the phone and the email attached. Turned out to be a spam profile. Had the conversation with her the same night.
Emily Thompson Seattle, WAMy mom kept getting the same scam call pattern. Ran the number, saw the scam database hits, reported it to the FTC. Small win but it felt good to have the paper trail.
Robert Kim New York, NYFrequently Asked Questions
You enter an email address and get back the person behind it. Instead of searching a name or username, you start with the inbox. Your report shows the registered name, linked social profiles, prior addresses, and any breaches the email has appeared in. It's the fastest way to find out who really sent that cold DM or suspicious signup notification.