Yeah, the CN is cdn.media.ccc.de, and SANs on the cert are DNS Name: berlin-ak.cdn.media.ccc.de, berlin-ak.ftp.media.ccc.de, cdn.media.ccc.de, ftp.media.ccc.de, static.media.ccc.de. Unfortunate submission typo! I've done similar a few times.

Maybe @dang or one of the moderators can swap to the link in your edit!