How To Embed Vimeo In An Iframe

Embed via the player.vimeo.com/video/ URL.

Embed Code

<iframe src="https://player.vimeo.com/video/VIDEO_ID"
  width="640" height="360"
  frameborder="0"
  allow="autoplay; fullscreen; picture-in-picture"
  allowfullscreen></iframe>

Why The Main Site Won't Frame

The public vimeo.com page blocks framing; player.vimeo.com is the embeddable host.

Official documentation →

See the embedding status of vimeo.com →