A web hosting service linked to anarchists says it is taking precautions over signs that it may be under a federal investigation.

The Department of Justice sent a subpoena to Google for information on the No Gods No Masters Network, which hosts “Anarchist Federation” and other radical sites, the network claimed in an Aug. 17 post purportedly showing an FBI subpoena. The No Gods No Masters Network also said Sunday it would let users know in the future whether it was “compromised” by the government through a regularly updated notice on its website.