Alter Ego Detector

Unmaintained Alter Ego Detector 1.7.8

No permission to download
Compatible XF 1.x versions
  1. 1.3
  2. 1.4
  3. 1.5
Additional requirements
php 5.4+
Apache License Version 2.0 (APLv2)
Visible branding
For a XenForo 2.x compatible replacement; see Signup abuse detection and blocking

Presenting, the Alter Ego detector originally @Liam W, now maintained by @Xon.

This AE detector uses a cookie to detect multiple accounts. The cookie lasts for either an admin configurable time (default 24 months), or until the user clears their cookies.

You can have a AE detection notify your staff by any combination of the following:
  • a PC
  • a new thread
  • A report
The check is performed during the login process, and the user won't even notice anything is different if they're using an AE.

New Permissions (under General Moderator Permissions):
  • Bypass Alert Ego Checking
  • View Alert Ego Report
Please ensure you assign the "View Alert Ego Report" to your moderator/administrator groups so they can see the Alter Ego Reports.


I recommend using Add-on install & upgrade or [TH] Install and Upgrade to install this addon.

Contributing features or bug fixes
Please create a Github Pull request via the "Find more info at" link.


If you appreciate this addon, please consider a contribution via PayPal. Details will be provide via private conversation.
  • upload_2013-10-5_20-29-56.webp
    25.1 KB · Views: 4,590
  • permissions.webp
    3.7 KB · Views: 2,917
  • options.webp
    49.1 KB · Views: 2,423
  • registration.webp
    15 KB · Views: 2,412
First release
Last update


4.36 star(s) 11 ratings

More resources from Xon

Latest updates

  1. 1.7.8 - Bugfix update

    Add missing code event listener for allowing banned users to logout Fix "A non-numeric value...
  2. XenForo 2.x compatible replacement

    For a XenForo 2.x compatible replacement; see Signup abuse detection and blocking (paid)
  3. 1.7.6 - Maintenance update

    Option to allow banned users to logout (enabled by default) Remove unneeded SQL query from...

Latest reviews

I only use the cookie detection and is a nice extra in combination with the xenforo ip check just to be sure.
The add-on works as advertised but in our case, it did not work out well for us on a high-volume forum due to workflow issues. We may look at this again, at a later time.
Very good add-on compared to many similar add-ons that I've used throughout the years. The developer is also very responsive and fixes bugs/adding feature requests when it's possible. Thank you for offering this add-on for free and keep up to good work :)
Echo'ing bcercan's remarks.... It's a bit challenging sifting through multiple threads by the same user. If a PC is being shared, such as a business PC where multiple employees use my site, it clutters things up.
I recommend using the report centre and the report option if possible. I can't offer an ETA of when this addon will track what threads it creates to avoid the issue described.
Add-on works fine but it create multiple account threads by one specific user which means you're unable to find wheter member using multiple accounts or not after your Multiple Accounts section reach 10k+ threads all created by one specific member! Also it creates same thread every time user login with his alternate account so for example when member joined 100 times with his alternate account, then you've 100 threads for it in your Multiple Accounts section which is one of the worst part of this add-on.
I'll be releasing an update in the next week or so that will fix these issues.
Works well for detecting duplicate accounts with a decent set of reporting options. A great for reducing the guesswork involved in manual duplicate account detection.
nice :D
Great add-on that will save my moderator team hours of guess-work regarding possible duplicate accounts. Thanks, Shaun :)
Nice :)
Top Bottom