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Click the magnifying glass-shaped icon in the top-right corner of the screen. This will search your Mac for the Network Utility program. It's at the top of the search results that are below the Spotlight search bar. Doing so opens the Network Utility program. You'll find this at the top of the window. Click the text field at the top of the page, then type in your website's address (e.g., "google.com"). You do not have to include the "www." section of the website's address. By default, this will send 10 pings to the website, but you can change the number in the text field to anything you like. It's a blue button on the far-right side of the window. Next to the "bytes from" line of text at the bottom of the page, you'll see a set of numbers. This is the website's IP address. Keep in mind that you're most likely looking at the website's public IP address. You usually won't be able to see the website's private servers' IP address.
Open Spotlight . Type network utility into Spotlight. Click Network Utility. Click the Ping tab. Enter the website's address. Check the "Send only [number] pings" box. Click Ping. Note the website's IP address.