@s4brface Will like to mention there's multiple websites that host homestuck that allow you to watch flashes through Ruffle (a modern flash emulator that works in-browser), some of which are directly made with mobile in mind for those who are unable to use the UHC. And all it takes to find them is googling "Homestuck", going to the 4th result (homestuck.net) which is after the currently-dysfunctional official site, the reddit, and wikipedia. Once there all you need to do is click the giant green "Read Homestuck" button at the top of the page, and it'll explain the UHC as well as website mirrors.
It's not hard to find the other ways to read it in the slightest.