Routing to BLOB properties is an implementation of partial routing, which lets you extend routing for any content beyond pages.

The URL pattern to route to a BLOB property is \<content url\>/BlobPropertyName.

Consider the following content model:

Suppose there is an image created in CMS with an URL like `http://site/GlobalMedia/Images/someimage.png`. You can route to the thumbnail BLOB property on the image by the URL `http://site/GlobalMedia/Images/someimage.png/thumbnail`. Because the property has the attribute `ImageDescriptor`, the thumbnail BLOB is generated automatically if it is null.