404. That’s an error.

The requested URL /extlink?tmpl=&external_name=Rich%20Snippet%20Testing%20Tool&utm_source=goopal&utm_medium=exttextlink&utm_campaign=external_links&external_link=http://www.google.com/webmasters/tools/richsnippets?url=www.goopal.org&view= was not found on this server. That’s all we know.