If your website isn't crystal clear about what you offer, when you offer it, what your prices are, and how to hire you, it doesn't matter how many leads you get

If your website isn't crystal clear about what you offer, when you offer it, what your prices are, and how to hire you, it doesn't matter how many leads you get. Your conversion will suck. If your site does all those things, your (first and) last slide just needs to have your URL and people will look at it (during and) after your speech.