Use an integration to achieve interaction with the embedded site while displaying information in the Appian out-of-the-box Web Content Component. That way you can refresh for updates and interact with the site.

Use the Appian out-of-the-box Web Content Component. It can display content from a URL and provide both additional inputs, or receive updates as the user interacts with the embedded site.

Use a component plug-in to achieve interaction with the embedded site, because this use case requires input-output or event parameters.