We have recently changed the URL on which our widgets are served, from embed.spotify.com to open.spotify.com. You don’t need to worry about this, since your widgets will continue working as expected.

Spotify Play Button

Old: https://embed.spotify.com/?uri=spotify:user:spotify:playlist:3rgsDhGHZxZ9sB9DQWQfuf

New: https://open.spotify.com/embed?uri=spotify:user:spotify:playlist:3rgsDhGHZxZ9sB9DQWQfuf

Spotify Follow Button

Old: https://embed.spotify.com/follow/1/?uri=spotify:artist:1vCWHaC5f2uS3yhpwWbIA6&size=detail&theme=ligh

New: https://open.spotify.com/follow/1?uri=spotify:artist:1vCWHaC5f2uS3yhpwWbIA6&size=detail&theme=light

The documentation pages for the Spotify Play Button and Follow Button have been updated to reflect this change.