Push Notifications on your Mac
from MacRumors.

Apple's Safari browser includes a feature that allows users to subscribe to "push" notifications from any website. Pushes show up as notification badges on the top right of your screen and can be used to be instantly notified when there are new MacRumors stories.

In order to subscribe, you need OS X Mavericks (10.9) or later and Safari. Push subscriptions are easy to opt-in to and easy to unsubscribe from using Safari's preferences. Configure your settings below.

To Subscribe

To Unsubscribe

macOS High Sierra (10.13) and later

In Safari, go to the menu bar at top-left of the screen. Click on SafariPreferences. Click on the Websites tab, then Notifications in the left menu. Here, you can change Allow to Deny for the MacRumors.com entry.

Earlier macOS versions

The Allow/Deny setting is located in SafariPreferences. Click on the Notifications tab.