Adding a Script on a "Design" Landing Page

I needed to add the following script, that's supposed to rended something similar to an RSS feed. I've pasted it as an HTML in the body, added as a javascript. Where should I paste this in order to render correctly?

<script src="https://www.ainessentials.com?apis_syndicate_embed=1&s_category_id=2" id="apis_syndicate">