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 fourth article in our series on anti-detect browsers. In the previous post, we explained how to detect anti-fingerprinting scripts injected via Chrome DevTools Protocol (CDP). Here, we analyze Hidemium, a popular anti-detect browser, and describe how it can be detected. We start with a high-level overview of| The Castle blog
In every HTTP request, the user agent header acts as a self-declared identity card for the client—typically a browser—sharing information about the software and platform supposedly making the request. It usually includes details like the browser name and version, operating system, and rendering engine. But crucially, this identity| 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
