> For the complete documentation index, see [llms.txt](https://docs.scaleflex.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.scaleflex.com/dynamic-media-optimization-dmo/settings/delivery/default-behaviors.md).
# Default behaviors
If the original image is missing or the original image url is not accessible, you can define what default image to show to the end user who is trying to access the url.
You can also select the type of response:
1. HTTP 200 with default image
2. HTTP 200 with transparent 1x1 px GIF (V7 API only)
3. HTTP 404 with default image
4. HTTP 404 with empty image (body = 0 bytes)
---
# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.scaleflex.com/dynamic-media-optimization-dmo/settings/delivery/default-behaviors.md?ask=&goal=
```
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