Textfeed from google Alerts shows empty one time, after a few minuts it's not

If I try to use “http://www.google.be/alerts/feeds/07445249211960138201/13812628975737708401” to textfeed, sometimes I’m actually able to use it. But on a random moment It doesn’t function anymore.

Hi there, Google might be limiting access to its content. They have a system which can prevent or limit how often another piece of software (such as ours) can access their content.