Many Chess.com premium users or free tier players use scripts to automatically export their completed games directly into Lichess’s free cloud evaluation engine with a single click.
If you know basic JavaScript, look through the script code before installing to ensure it does not send data to third-party servers. tampermonkey chess script
Yes, Chess.com has sophisticated cheating detection methods, including tracking move times and engine correlation, which can easily catch users employing helper scripts. Conclusion Many Chess