Email search
Reverse Email Lookup
Find the accounts and public profiles linked to an email address. Opsis checks 1,000+ sources for the exact address and shows you what each one actually returned.
What a result looks like
An illustrative search for a fictional address. Each source is reported on its own, so a full profile is never confused with an account signal.
Public profile
Gravatar
- Display name
- Alex Morgan
- Handle
- alex_demo
- Biography
- Designer and weekend photographer.
Public profile
GitHub
- Username
- alex-demo
- Public repositories
- 12
- Joined
- 2019
Account signal
Music streaming service
- Registered
- Yes, no public profile returned
What a reverse email lookup can find
Registered accounts
Services where the address has an account, from social networks and creator platforms to developer, gaming, shopping and forum sites.
Public profile details
When a source exposes one: a display name, handle, avatar, biography, location or join date, kept exactly as the source returned it.
Usernames and links to follow
Handles and published links you can take into a username search to find more of the same person’s public presence.
Context for the address itself
Whether results come from a personal or a work address, which changes how much each match tells you.
How it works
- 01
Enter the email address
Use an address you have a legitimate reason to research. Opsis never contacts it, logs in to its accounts or sends it anything.
- 02
Opsis checks 1,000+ sources
Each supported service is checked in parallel for that exact address. Results stream in as each source answers.
- 03
Review what came back
Profiles, account signals and unavailable sources are labelled separately. Follow the useful leads and verify them on the original service.
Who uses reverse email lookup
Fraud and trust teams
Check whether a signup or order email has a real history before approving it.
Security investigators
Understand who is behind a suspicious or phishing sender as part of an investigation.
Recruiters and HR
Confirm that a candidate’s professional presence matches what they shared.
Online dating safety
Check that a match is who they say they are before meeting in person.
Journalists and researchers
Map the public footprint of an address connected to a story or a study.
Anyone checking themselves
See which services still have your address on file and clean up old accounts.
Reverse email lookup questions
What is a reverse email lookup?
A reverse email lookup starts from an email address and looks for the accounts, public profiles and other records associated with it. Opsis checks each supported source for that exact address and reports what the source itself returned.
How does a reverse email lookup work?
Each source has its own public signal for whether an address is registered, and some return a public profile. Opsis runs those checks in parallel, keeps each result separate, and labels whether a source returned a profile, only an account signal, or nothing usable.
What can I find with a reverse email lookup?
Depending on the address and the source: services the address is registered with, public profile details such as a display name, handle, avatar or biography, published links, and usernames you can follow with a separate username search.
Is a reverse email lookup free?
Free accounts include 3 standard searches a month. Paid plans add more searches and Premium sources. The example on this page is free to explore and runs no lookups.
Is it legal to do a reverse email lookup?
Opsis only uses publicly available signals, never logs in to anyone else’s account, and never sends anything to the address you search. You are responsible for having a lawful reason to research an address and for following the laws that apply to you.
Will the person know I looked up their email?
Opsis does not email, message or notify the address you search, and its checks do not trigger sign-in or password-reset emails.
How accurate is a reverse email lookup?
A match means a source responded for that exact address; it is a lead, not proof of who owns the inbox. Sources change, some block automated checks, and a blocked or unavailable source is not the same as “no account”.
What if no results are found?
The person may use a different address for their accounts, the services they use may not expose a signal, or a source may have been unavailable. Try other addresses you are authorized to research, or search a known username instead.
Can I look up my own email address?
Yes. Checking your own address is a good way to review your digital footprint. Confirm anything you find on the original service before changing or deleting accounts.
How is this different from an email verifier?
An email verifier checks whether an inbox can receive mail. A reverse email lookup looks for the accounts and public profiles associated with an address, which is a different question.
Start a reverse email lookup
Search any address you are authorized to research. Results come from public sources only.
Want the full method? See how to find social media accounts by email, or learn how we check results.