Browser fingerprinting leverages different JavaScript attributes related to the user's device, OS, and browser. When it comes to bot detection, fingerprints can be used as a signature to block attackers, even if they delete their session cookies. Bot detection engines also verify the values of different attributes to verify their| The Castle blog
This is the first article of a series about anti-detect browsers. In this article, we provide an overview of anti-detect browsers and their main features. We also present the most common fraudulent use cases of these browsers. In the next articles, we’ll deep dive into the techniques they use| The Castle blog
The good old days where bots used PhantomJS and could be detected because they didn’t support basic JavaScript features are over. It’s 2025, and the bots have never been as sophisticated as today. They leverage anti-detect automation frameworks, residential proxies and CAPTCHA farms. Even basic bots that leverage| The Castle blog
Headless Chrome bots powered by Puppeteer are a popular choice among bot developers. The Puppeteer API’s ease of use, combined with the lightweight nature of Headless Chrome, makes it a preferred tool over its full-browser counterpart. It is commonly used for web scraping, credential stuffing attacks, and the creation| The Castle blog
