---
title: Route to BLOB properties
slug: cms-13/docs/route-to-blob-properties
docTags: 
createdAt: 2026-07-30T20:22:01.868Z
---

BLOB property routing is a partial routing implementation that extends routing for any content beyond pages. Append the BLOB property name to a content URL to access the BLOB directly.

The URL pattern is `CONTENT_URL/BLOB_PROPERTY_NAME`.

The following content model defines a `Thumbnail` BLOB property on `ImageData`:

```csharp
/// <summary>
/// Base class for content types which should be handled as images by the system.
/// </summary>
public class ImageData : MediaData
{
    /// <summary>
    /// Gets or sets the generated thumbnail for this media.
    /// </summary>
    [ImageDescriptor(Width = 48, Height = 48)]
    public override Blob Thumbnail { get; set; }
}
```

For an image with the URL `http://site/GlobalMedia/Images/someimage.png`, access the `Thumbnail` BLOB property at `http://site/GlobalMedia/Images/someimage.png/thumbnail`. The `ImageDescriptor` attribute generates the thumbnail BLOB when the value is null.