Click the orange View Site button at the top right of your site editor. It opens your real website in a new tab, exactly the way a customer sees it.
When you're done looking, close that tab. Your site editor is still open behind it.
There's also a live preview inside the Homepage editor. It shows your changes as you make them, before you even save.
Why this matters
Seeing the real site helps you catch anything that looks off, like an old phone number or a missing photo, before a customer does.
Related questions
Can't find your answer?
Ask a real person. Tell us what you were trying to do and we'll sort it out with you.