Safari Push Notifications

Go to Apple developer portal and navigate to the certificates list page
Click the Certificates + button to open the Certificates Page
Select Website Push ID Certificate and click the Continue button
Enter your Website Push ID in the textbox and click Continue. Your Website Push ID should be of the following format web.reversedomainname
Upload your Certificate Signing Request. You can create it by following the steps in Apple Developer Docs
Download the push certificate and export your private key (.p12)
Fill the fields for Safari (APNS) Configuration in your Askribe dashboard