About the 4 mirror sites
This site lives in four identical copies, called mirrors, in four cities: New York, London, Frankfurt and Singapore. Each mirror holds the same files.
What they’re for: use whichever one is closest or quickest for you. If one is ever slow or offline, the others keep working, so you can carry on.
Please bookmark all four. It’s rare, but if one goes offline someday, you can simply open another.
To bookmark a site, open it and press Ctrl+D (Cmd+D on a Mac). On a phone, use your browser’s menu and choose Add bookmark.