What to do instead
- Neither Substack's posts nor anybody's email client will run a script — email has not run JavaScript for twenty years, and that is a good thing.
- Use a testimonial image: the quotation drawn as a picture, with your color and mark, which you paste into the post like any other image.
- Link the hosted wall under it for readers who want to see the rest.
Choosing the layout
The tag above draws a wall. Adding ?template= to the src changes it to any of the 23 — a marquee, a rating badge, a single pull quote — without touching your page again.
What you already have
Each guide below is one of those places and Substack together: how they come across, and where they go.
Somewhere else
WordPressA Custom HTML block, anywhere in the page.ElementorThe HTML widget, dragged where you want it.ShopifyA Custom Liquid section on the page or the product template.WebflowAn Embed element, sized as you like.SquarespaceA Code block, on the plans that allow custom code.WixThe "Embed HTML" element.
Collect one, and put it on Substack
A form link, a customer who writes for a minute, and two lines on your page.