The social networking platform announced on Sunday that it would remove accounts created just to plug other sites or to use links or usernames to promote other content.
In a tweet it mentioned that the change would have an effect on content from social media sites including Facebook and Instagram from Meta Platforms, as well as Mastodon, Truth Social, Tribel, Nostr, and Post. It would also enable cross-content publishing and Twitter support.
TikTok, a platform for short videos owned by China's ByteDance, was left off the list.
Twitter's Trust and Safety Council, a volunteer body established in 2016 to provide the social media platform with recommendations on site decisions, was abolished last week.
The tumultuous acts at Twitter since Elon Musk, who is also the CEO of Tesla, purchased the social network have led to the change in policy.
While hewn over how much to charge for Twitter Blue, the company's subscription service, he dismissed top management and let roughly half of its staff go.
A contend over posting open information on the billionaire's jet led to Musk also suspending the accounts of many journalists.