Broken Screenshot Troubleshooter Usage: 

Option 1 - Browse to the homepage of ShrinkTheWeb and submit a domain that is marked as invalid or broken. You will now see the error code associated with that domain.

Option 2 - Request an invalid or broken thumbnail via the API and the XML will now contain a new tag. Just extract the code between the StatusCode tag that is between the new Response Code tag.

Example XML:

<stw:ResponseCode>
	<stw:StatusCode>Success (0)</stw:StatusCode>
</stw:ResponseCode>

*Note: Success (0) may be a misleading error message because it contains the word success. However, the error code of "0" indicates that the site could not be contacted