Castio

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Build and embed a proof wall

Everything you need to go from blank wall to embedded proof in a few minutes.

1. Create a workspace

After you sign up, create a workspace. A workspace groups your proof walls — use one per brand or client.

2. Create a proof wall

From the dashboard, choose New wall. Give it a name and a URL slug, then pick a layout (grid or compact list), theme and accent color.

3. Add proof cards

Open your wall and choose Add card. Pick a proof type (testimonial, review, social post, screenshot, metric and more), then paste the quote, person, source and any media URL. Cards start as draft.

4. Approve what goes live

Review each card and set it to approved. Only approved cards on a published wall appear publicly. You can also hide or archive cards at any time.

5. Publish the wall

Set the wall’s status to published. Your public wall is now live at /w/your-slug.

6. Copy the embed code

Open the Embed tab on your wall and copy the iframe snippet. Paste it into any website, store or landing page. The embed shows only approved cards from your published wall.

Tips

  • Keep quotes short and specific — concrete beats generic.
  • Lead with your strongest proof; order cards by impact.
  • Add a CTA so proof turns into clicks.

Want to see it first? Explore the live demo walls →

Build your first proof wall today

Free to start. No social logins. Live in five minutes.