Those websites are traps. They generate revenue through ads, and many of them also distribute malware. The files they offer are either:
You can improve your typing skills without putting your computer and data at risk. There are many excellent, completely free, and legal typing tutors available. These programs are developed by trusted individuals and organizations, are regularly updated, and most are open-source, meaning their code is available for anyone to inspect for security and privacy.
Key features of genuine JR Typing Tutor include:
Finding the "crack" is the first test of your patience—and your antivirus software.