Web site to check if your email address or password has been hacked

The site is https://haveibeenpwned.com/.  There is a tab at the top of the page "Password" to check a password.  In general, if your email has been hacked, then change your password to something long and strong.  You're going to have to go to a password manager to be secure on the internet- you can't manage all your web sites on a sheet of paper.  Read this for background:  https://askleo.com/what-should-i-do-about-the-latest-breach/