The hostname is 41 chars, and the image ID 40 chars in the first example. The full URL from // to .png is 104 chars. I bet you could shorten that URL a lot with a suitable CNAME. Register a WX.YZ host and assign two or three character labels there:
//assets-meta-cdck-prod-meta.s3.dualstack.us-west-1.amazonaws.com/
//dm.cd.cs/
44 versus 11.
(Of course, Czechoslovakia doesn’t register hostnames anymore.)