Guide
OptiFine cape lookup (and why it matters)
OptiFine capes are served from OptiFine's CDN, not Mojang's session payload. MCProfiles requests them explicitly and labels the source so you can see what came from where — similar to how Crafty.gg differentiates OptiFine from official capes, but without building a competing skin gallery.
We do not passively index every skin a player has ever worn. That design choice trades raw database size for privacy alignment; your forward-only snapshots and cape explorer filters still give collectors useful views on profiles you (and others) have looked up.