---
title: "How to set a default featured image in knowledge base"
slug: "how-to-set-a-default-featured-image-in-knowledge-base"
description: "Set a default featured image for the articles in your knowledge base project. Add a custom HTML integration and set up this in minutes. "
tags: ["Customization"]
updated: 2026-06-20T09:59:40Z
published: 2026-06-20T09:59:40Z
canonical: "docs.document360.com/how-to-set-a-default-featured-image-in-knowledge-base"
---
> ## Documentation Index
> Fetch the complete documentation index at: https://docs.document360.com/llms.txt
> Use this file to discover all available pages before exploring further.
# How to set a default featured image in knowledge base
When you share a knowledge base article on social media, Facebook, LinkedIn, X (Twitter), or similar platforms, the platform uses Open Graph metadata to generate a link preview, including a thumbnail image. If an article has a featured image set, that image is used. If no featured image is set, the platform picks a random image from the article page, or shows no image at all, neither of which makes a strong or consistent impression.
Setting a default featured image using Open Graph meta tags ensures that any article without its own featured image falls back to a designated image of your choice, giving your social shares a consistent, branded appearance.
---
## When to use this
Use this customization when you want to:
- Ensure every article shared on social media displays a meaningful thumbnail, even if no featured image has been set at the article level.
- Apply a consistent brand image as the fallback for social previews across your knowledge base.
- Prevent social platforms from selecting a random or irrelevant image from an article page.
---
## Before you begin
- You need access to **Connections** > **Integrations** > **Custom HTML** in the Knowledge base portal.
- The default featured image must be available at a public URL. If the image is on your local device, upload it to **Drive** in Document360 first and copy its URL from there.
- This setting applies at the project level, it provides a fallback image for all articles in the project that do not have a featured image set individually.
- Articles that already have a featured image set will continue to use their own image. The default only applies when no article-level featured image exists.
---
## How to set a default featured image for social sharing
1. Navigate to **Connections** > **Integrations** in the left navigation bar in the Knowledge base portal.
2. Go to **Custom HTML** and click **Add**.
The **Add new integration** panel appears.
3. Enter a description for the integration and ensure **In the Header (above `</head>`)** is selected.
4. Paste the following snippet into the code editor:
```
```
1. Replace both instances of `Image_URL` with the URL of your default featured image.
> **Example URL from Document360 Drive:** `https://cdn.document360.io/8*****dd1/Images/Documentation/default_fi.png`
1. Click **Add**.
---
## Best practices
- **Upload your default image to Drive first.** Linking to external image URLs can break if the source moves or goes offline. Hosting the image in Document360 Drive keeps it stable and under your control.
- **Use an image sized for social sharing.** The recommended Open Graph image size is **1200 × 630 pixels**. Images smaller than this may appear cropped, blurry, or letterboxed in social previews.
- **Replace both `Image_URL` instances.** The snippet contains two meta tags — `og:image` for standard HTTP and `og:image:secure_url` for HTTPS. Both should point to the same image URL. Leaving either as `Image_URL` will cause the fallback to fail for the corresponding connection type.
- **Set article-level featured images where it matters.** The default image is a fallback — it applies to all articles without their own featured image. For high-visibility articles or landing pages, set a specific featured image at the article level for a more tailored social preview.
- **Test your social preview after adding.** Use the [Facebook Sharing Debugger](https://developers.facebook.com/tools/debug/) or [LinkedIn Post Inspector](https://www.linkedin.com/post-inspector/) to verify the default image appears correctly in a preview before sharing articles publicly. Social platforms often cache Open Graph data, so it may take a moment to refresh.