Hey everyone, I'm having a problem working out an issue and I've tried using the duplicate tool but it doesn't seem to be working the way I want it to.

I have two lists of websites. List A is a full list and list B is over 60/70% of websites from List A that I have checked through.

Now I want to put the two lists together and leave only the unique websites. So if there a website listed twice, it would delete them both and it would leave me full of the websites that I haven't checked