You can add web push to your WordPress blog quickly using Engagespot. Follow these steps.
Read Updated Doc Here – How to Add Push Notifications to WordPress Blog
2. Login to your WordPress admin dashboard, Goto settings -> Engagespot
3. Enter your site key, API Secret and Subdomain (You will get these details after adding your website through Engagespot Dashboard)
Done! That’s it. Push notification has been added to your WordPress blog.