Once you're logged in, navigate your way to https://onlineornot.com/app/pages to see your list of pages being monitored.
As a new user, this list will be empty, so let's add some pages to monitor:
First, visit https://onlineornot.com/app/pages/add, and enter the page you want to monitor. Here's an example for you:
Once you've added your page, you'll be redirected back to your list of pages being monitored. Once your page's uptime has been checked, you should see a green dot next to the site name, as shown below:
Once you see the green dot, you know all is well with your site, and you can get back to the rest of your day.