Testing live site in different browsers like Safari

I'm working on a windows PC and I want to test my site in different browsers, to see if everything is as it should be. The only browser I can't test in Safari.

I have tried different services online, but they either lag or are tedious to use. I'm also using the chrome extension called Chrome UA Spoofer, but the only version of Safari is Mac Safari 7.

How do you guys test browsers like Safari on a Windows PC?