Livestream Enterprise users can control which domains (URLs) in which their Livestream events can be embedded. This allows them to manage how and where their content is shared.
If you have a Vimeo Premium account, see Vimeo's Help Center for how to restrict embeds.
After creating an event, click the Editor icon in the upper right corner of your event page.
Towards the bottom of the menu, click Privacy.
The last option in this menu is URL Embed Restriction, which gives you the ability to allow or deny the embedding on specified domains or URLs.
Add the domains you want to allow or deny access to embed your player. When you are done, select Update Settings.
Do not put spaces in between commas.
If someone attempts to embed the Livestream player on a domain or URL you've denied or haven't allowed, the iFrame will display a message indicating the event is not allowed on that domain instead of your content.