To help reduce notification overload, Chrome for Android and desktop will automatically disable notifications from websites you don’t frequently visit. Specifically, Google is revoking the notification permission from sites that see “very low user engagement” but send a “high volume” of alerts. This feature is part of Safety Check, which already works to remove camera and location permissions from pages you haven’t visited recently. Google will tell you when “Chrome unsubscribed you from notifications” with an alert, while you can also go to Settings > Safety Check to “View sites” and restore. Alternatively, visit the site again and confirm you want notifications. This feature will not apply to notifications from web apps (PWAs) you have installed (added to your homescreen/launcher), while you can disable auto-revocations entirely. In testing this capability, Google found a “significant reduction in notification overload with only a minimal change in total notification clicks.” Overall, Google finds websites that send a lower volume of alerts see more clicks, while “less than 1% of all notification.