Can a blocked person see that I am online in WhatsApp - briefly?
No, a blocked person cannot see your online status in WhatsApp. When you block someone, they are unable to view any information about your profile, including your last seen and online status.
Can a blocked person see that I am online in WhatsApp - in detail?
When you block someone on WhatsApp, they are effectively removed from your contact list and can no longer interact with you through the app. This means that any status updates or changes to your profile picture will not be visible to them. In addition, their ability to see if you are online is also restricted.
WhatsApp uses a feature called "Last Seen" to indicate when a user was last active on the platform. When someone blocks another user, the blocker's "Last Seen" status will not be visible to the blocked user. This means that even if the blocker is online at the moment, the blocked user will not receive any indication of this activity.
Furthermore, WhatsApp does not notify users when they have been blocked by someone else. The blocked user will still see your profile picture and status updates as they were before you blocked them, but they will not be able to send messages or make calls to your number through the app.
In summary, a blocked person cannot see that you are online on WhatsApp. The "Last Seen" feature is disabled for blocked users, ensuring that their online status remains private and protected from unwanted attention.