404. That’s an error.
The requested URL /_/+1/confirm?hl=de&url=http%3A%2F%2Fwww.spiegel.de%2Fvideo%2Fpolizeieinsatz-in-russland-dutzende-oppositionelle-festgenommen-video-1081889.html&title=Polizeieinsatz%20in%20Russland%3A%20Dutzende%20Oppositionelle%20festgenommen
was not found on this server. That’s all we know.