In RepU, open your widget, choose the carousel, then click Copy next to the embed snippet.
In the IONOS website editor, hover over the section where you want your reviews. Add an HTML Module, click it, choose Code, and paste your code.
Need more detail? See the official IONOS guide.
Click Publish, then open the live page to see your review carousel.
Check your live page in a private window, not the editor or preview. A domain-locked widget only shows on your own domain.
If the carousel looks cut off, resize the HTML Module. The HTML Module is not included in every IONOS plan.