What is Browser-Based Crypto Mining? 

Browser-based cryptocurrency mining is a process in which a website visitor’s computer is used to mine cryptocurrency. This is typically done through the use of a JavaScript script that runs in the visitor’s web browser. Browser-based cryptocurrency mining dates back to 2011 when BitcoinPlus.com launched its then-innovative service.

The script uses the processing power of the visitor’s computer to solve complex mathematical problems, which are required to confirm transactions on the blockchain (a decentralized, distributed ledger that records transactions). In exchange for contributing their computing power to the network, the visitor is typically rewarded with a small amount of the cryptocurrency being mined.

One of the main benefits of browser-based mining is that it allows anyone with a website to monetize their traffic without the need to create and maintain their own mining infrastructure. However, it also has the potential to negatively impact the user experience, as it can significantly slow down the visitor’s computer and use a lot of their battery power.

It’s important to note that browser-based mining is generally considered to be less profitable and less secure than other types of cryptocurrency mining, such as mining with specialized hardware or through a mining pool. As such, it is not a common method of mining and is generally only used by smaller websites or as a means of supplementing other forms of revenue.

Monero is an example of a cryptocurrency that enables browser-based mining. Monero uses the RandomX hash function, a hashing algorithm used for certain PoW blockchains like Monero.

Designed to be application-specific integrated circuit (ASIC)-resistant, RandomX uses random code execution and memory-hard techniques. This means that Monero’s PoW algorithm specifically prevents specialized mining hardware, like ASICs and graphics processing units, from dominating the network. RandomX is purposely optimized for general-purpose CPUs in the hopes of maintaining a more decentralized network and equal block reward distribution.