Browser fingerprinting is a security technique used in many different situations where you want to uniquely identify a user, no matter who the user is telling you they are.
One of those situations, is of course, when they’re scrapping your website. If you’re using limited detection techniques, such as checking their User-Agent or their IP, they can easily change that information and you’ll be none the wiser.
On the other hand, if you implement something like browser fingerprinting, then you’ll make their job a lot more difficult, because you’ll be using information they can’t fake.
In this article, I’m going to cover some of the most common techniques for creating this so-called “browser fingerprint”, and then I’ll show you how to implement one of them.