Anyone who deals with cryptocurrencies knows that mining requires very powerful systems. So if you are thinking of pursuing a "sport" you must first invest in a very good computer system. 
Recently certain websites they have started using the system resources of the users who visit them, for mining. Some of them display a notification on the screen explaining what will happen before it starts, while others start using your system without saying anything.
This publication refers to the second sites, which are starting to use the resources of their visitors' systems to gain cryprobes.
Who is mining? is a web application that has a comprehensive list of all known mining websites. It also allows you to check some σελίδα it does mining without reporting it to the end user.
Visit it whoismining.com and enter the URL of the page you suspect is using it browser you to do cryptocurrency mining. The web application will confirm if your suspicions are true.
The app still has endless lists of webpages with that behavior.
If you see that a page you are interested in is using your computer, you can simply stop visiting it. If you still can't do without it, you can block mining from it program your browser with a plug-in or extension.
It's worth debating whether or not this practice is right, especially when sites choose not to reveal what they're doing. Some users of these pages have no problem allowing their system to be used for mining encryption, however it should be up to the user to decide if they want to do it or not.
