The Rose City Antifa and Jane's Revenge websites went dark after the State Department designated their tech provider, A/I Collective, a global terrorist.
https://www.foxnews.com/politics/antifa-linked-sites-dark-state-department-terror-designation-tech-collective
https://www.foxnews.com/politics/antifa-linked-sites-dark-state-department-terror-designation-tech-collective