For the first time in the history of the internet, the United States government has officially banned a major global social media platform, joining the ranks of authoritarian regimes such as Russia and China. Last Saturday, TikTok officially went dark. Users who try to access the app are now greeted with a message that says “TikTok is currently unavailable.”

“We are fortunate that President Trump has indicated that he will work with us on a solution to restore TikTok once he takes office,” the message added. “Please stay tuned!”

This is the final result of Congressional legislation passed last year which requires TikTok’s Chinese parent company, ByteDance, to sell the app’s American operations or face a nationwide ban. But unlike countries that regularly engage in internet censorship, the US does not have a centralized infrastructure to prevent Americans from accessing specific apps or websites.

However, the law forced Apple and Google to remove TikTok from their app stores, or risk collecting millions of dollars in fines. The two companies appeared to be removing TikTok and other apps owned by its parent company ByteDance on Saturday. Google and Apple did not immediately respond to requests for comment.

The law also prohibits companies from providing TikTok data hosting services. Oracle, which counts TikTok as one of its largest cloud computing customers, is reported started talking to the staff to shut down servers hosting US TikTok data on Saturday, according to The Information. Oracle did not immediately return a request for comment.

In May, TikTok and a group of US creators appealed to stop the law from taking effect, saying it violated the First Amendment. The Supreme Court REJECTED those arguments in a unanimous decision on January 17, which concluded that the provision was motivated by “well-supported national security concerns.”

“This is a blatant violation of the First Amendment,” said Evelyn Douek, a professor at Stanford Law School who specializes in online speech issues. “Unfortunately for me, all nine of the Supreme Court justices disagree, and almost everyone who matters listens to their opinion over mine. It’s hard to take the national security rationale seriously, though, when in recent times day presidents past and future as well as members of Congress seem to be backpedaling on whether an immediate shutdown is necessary.

With days remaining until the deadline, President Biden signaled that he would leave implementation to the incoming Trump administration. The move leaves the fate of the app in limbo, and TikTok urged the Biden administration on Saturday to provide firm assurances that it will not enforce the law. In response, Biden’s team suggested TikTok raise its concerns with Trump.

On Blind, an anonymous messaging app popular among tech workers, some TikTok employees are buzzing about whether they’ll have jobs next month, while others are going about business as usual. “Any manager still scheduling meetings next week about new, upcoming projects without recognizing any restrictions?” wrote one user. “I have 2025 strategy meetings next week,” replied another user. “I just did what I was told. It’s comforting in a way.”