Twitter will restrict promotion of prohibited 3rd-party social media platforms, such as Facebook, Instagram, Mastodon, Truth Social, Tribel, Post, or Nostr, on Twitter through links or handles. Link aggregators linktr.ee and lnk.bio are also prohibited. Accounts that primarily promote content on other social platforms may be suspended. Attempts to bypass these restrictions, such as URL cloaking or plaintext obfuscation, are also prohibited. This includes sharing screenshots or spelling out “dot” in social media platform names to avoid URL creation.Nostr provides a censorship alternative to twitter and was recently funded by Twitter Founder Jack Dorsey.