A shadowban means, for some reason, Twitter is restricting your reach but not suspending or banning your account. If you’ve been shadowbanned, your replies and tweets will not be visible to the people who follow you.  This usually happens if you’ve violated some of Twitter’s rules or if Twitter thinks you’re a bot.  Use an incognito window or tab and log into another account. Once you’ve done that, search for the account you think is shadowbanned. You have been shadowbanned if your account doesn’t appear in the results. Another sign that points to a shadowban is when your profile does appear, but no tweets are visible.  You can also use a third-party website to test this.