client: how to know if a web page has a mining code?

Usually, when you navigate to a website that is exploding with your computer, you will notice that the CPU usage increases dramatically. However, if the mining code is adjusted to avoid a noticeable increase in CPU usage, it will be basically impossible to detect if a website is being browsed through your browser. The only way to know would be to examine the source code of each of the websites.

However, to avoid this problem, you can prevent JavaScript from running. By using an add-on such as NoScript, you can prevent JavaScript from running when you visit any website, which will prevent JavaScript miners from using your computer to extract cryptocurrencies. Then, you can enable JavaScript for specific websites and enable certain scripts for each website so that you know that you are not mining with your computer while still making websites that use JavaScript usable.