---
title: "What are Cards?"
description: "Understand the different types of Cards, delivery channels, and what they're used for."
url: https://help.knotch.com/en/articles/34-what-are-cards
collection: "Cards"
updated: 2026-03-19
language: en
---

# What are Cards?

Understand the different types of Cards, delivery channels, and what they're used for.

**Cards** are interactive elements used to collect feedback, engage users, or deliver content. You can view a demo of on-site Cards [here](https://www.knotch.com/demos/knotch-cards).

Cards can be delivered through two channels:

-   **Web Page:** Cards appear as pop-ups or overlays on your website, triggered by page load, scroll depth, time on page, or exit intent.
    
-   **Email:** Cards are embedded directly into email content using an HTML snippet. Recipients interact with the first question in the email, then complete remaining steps on a designated landing page.
    

Types of Cards include:

-   **Survey Cards:** Ask users about sentiment, value, or intent
    
-   **Call-to-Action (CTA) Cards:** Encourage users to take an action (e.g., "Request Demo," "Explore Now")
    
-   **Recommendation Cards:** Suggest related content to increase recirculation
    
-   **Message Cards:** Deliver announcements or branded messages
    

Cards are highly customizable, targeted, and trackable — so you can understand audience reactions and influence behavior at key touchpoints, whether on your website or in email campaigns.