What YouTube does for a seller
YouTube is a free video sharing and discovery platform. You upload, it encodes and serves the video worldwide, and a public video can be found by people who have never heard of you. For a seller, that makes it a strong top-of-funnel channel: tutorials, testimonials and short clips that bring new people toward an offer.
Where it falls short on a sales page
The terms allow you to show videos on your own site through the embeddable YouTube player, and that player is the only option. It carries YouTube's branding and links, and since Google's 2018 change to the embed parameters the related-videos setting only narrows end-screen suggestions to your own channel. The same terms give YouTube the right to monetize your uploads, including with ads.
The bigger gap for paid traffic is measurement. YouTube reports on the video and the channel. It cannot tell you which seconds your buyers watched, and it cannot post a cart-verified sale back to Meta, TikTok or GA4 against the play that earned it.
The usual split
Most direct-response sellers keep YouTube for reach and move the closing video to a host they control. Our YouTube alternatives for sales videos rank the hosts that do that job, and the ranked roundup covers the whole field.