Does X (Twitter) notify someone when you block, mute or remove them?

No. X's page on blocking says blocked accounts don't receive a notification. They can find out, though: when a blocked account visits your profile, X shows it that it's blocked.

A block also changes things they may notice before that. As of October 2026, once you block someone:

• they stop following you, and you stop following them
• they can still see your posts if your account is public, but can't like, reply to or repost them
• they can't follow you again, send you a DM or add you to a list

Unfollow trackers see a block as an unfollow. If you followed them, you drop out of their followers list, and if they use UnfollowMonkey, our DM at their next check says "@yourname unfollowed you". How to know if someone blocked you tells the same story from their side.

No, and they can't find out from X. X's page on muting says: "Muted accounts will not know that you've muted them and you can unmute them at any time."

Muting only changes what you see. Their posts leave your timeline, but they still follow you if they did, and X says muting doesn't affect their ability to send you a DM. No app can tell them either: X's developer documentation says an app can't subscribe to notifications about someone being muted.

Muting words works the same way, for you alone. X's advanced muting page says a muted word or hashtag is hidden from your notifications and your Home timeline, not from search, and the people who write it aren't told. Muting a conversation stops your notifications about it, and nothing more.

No. When you choose "Remove this follower" on x.com, X's confirmation says the account "won't be notified by X". Its Following FAQs, which describe the option, don't mention it either way.

What they can see is the result. They're no longer in your followers list, and if your posts are protected, they can no longer read them. X says a removal doesn't stop them following you again, or asking to if your posts are protected. How to remove a follower without blocking them has the steps.

Our DMs say nothing to them about it, because their own followers list hasn't changed. On your side, the account is gone from your followers list, so if you use UnfollowMonkey, our next check reports them as having "unfollowed you": a followers list can't tell a removal from an unfollow.

Here's what X says the other person is told, as of October 2026.

Chats are the exception. When X launched its encrypted Chat in November 2025, its @chat account listed "block screenshots and get notified of attempts" among the features. X's help pages don't say how that works, so check the conversation's settings in your app. For posts and profiles, X has nothing like Snapchat, which shows an icon in the chat when someone screenshots a Snap, or Instagram, which notifies the sender when it detects a screenshot of a disappearing message.

X's Engineering account gave the reason for the 2024 change on 16 October 2024: people were using blocks to share and hide harmful or private information about the person they'd blocked.