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Joe12387/README.md

I'm a software developer specializing in information security, reverse engineering, browser fingerprinting & bot detection.

I also maintain several open source repositories here on GitHub.

You can contact me at Joe@dreggle.com. My PGP key is available here if you require increased confidentiality.

That's about it.

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Here are my current active projects as of April 2026:

  • Established Emails - Positive email reputation API for fraud teams, able to determine minimum age of billions of emails.
  • OverpoweredJS - API focused on browser tracking, fraud detection, bot detection, and related signals.
  • detectIncognito - A TypeScript/JavaScript library for detecting the use of incognito mode or a similar private browsing mode when a browser visits a site. Works with all browsers with compatability for old browsers going back approximately 10 years. Approximately 1M downloads per month.

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Also, I don't have anywhere to put my list of reported security vulnerabilities, so here they are:

Pinned Loading

  1. detectIncognito detectIncognito Public

    JavaScript detection of Incognito & other private browsing modes on Chrome, Edge, Safari, Brave, Firefox, Opera and MSIE.

    TypeScript 510 55

  2. overpoweredjs overpoweredjs Public

    An even more powerful browser fingerprinting library for creating persistent, unique and long-lasting digital fingerprints.

    TypeScript 36 5

  3. safari-canvas-fingerprinting-exploit safari-canvas-fingerprinting-exploit Public

    An exploit for Safari 17.4 and lower that enables fingerprinting Safari users using OffscreenCanvas and SharedWorkers even if fingerprinting protections are enabled.

    HTML 16

  4. browser-fingerprinting-resistance-research browser-fingerprinting-resistance-research Public

    List of current browser fingerprinting protections used by various browsers and their effectiveness against various fingerprinting techniques & services.

    36 3

  5. chromedriver-credential-stuffing chromedriver-credential-stuffing Public

    A collection of brute forcing code for conducting credential stuffing attacks on popular websites.

    PHP 4

  6. malicedetect malicedetect Public

    A simple JS library to detect malicious browsers, including bots & browsers lying about their user agent.

    JavaScript 10