There are two different ways to include a Scratch project in another website.

Embed: If you are editing a webpage, you can use this HTML iframe code:

<iframe allowtransparency="true" width="485" height="402"  src="//"  frameborder="0" allowfullscreen></iframe>

Type in the project ID for the Scratch project you want to embed. You'll find the project ID in the project's web address.

You can also find this code by clicking "Copy Link" on any project page.

Video: You can record a video of your Scratch project to share on another site. We recommend using a screen recording program as you play the project. (Many computers come with a screen recorder built in.) 

Or you can record a video using the camera on a phone or tablet.