The reasons for Zippyshare being restricted in numerous countries remain unclear. After conducting my own online research, I took the initiative to contact its developers directly for clarification, but I never received a response. There are two types of blocks affecting Zippyshare users. In some cases, Zippyshare is using geoblocks to stop people from specific countries from accessing it. In other cases, governments have asked ISPs to restrict access to it. I suspect it might be due to issues with people using Zippyshare to upload copyrighted files (similar to how some countries block torrent indexes).  However, my quick guide works for both types of blocks so that you can get back to using Zippyshare.