whois open.spotify.com/episode/5ko2L3IPoVxgk7nUcRFtGU/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
open.spotify.com/episode/5ko2L3IPoVxgk7nUcRFtGU/
checking....open.spotify.com/episode/5ko2L3IPoVxgk7nUcRFtGU/
   $ whois open.spotify.com/episode/5ko2L3IPoVxgk7nUcRFtGU/
No whois server is known for this kind of object.