404. That’s an error.
The requested URL /search?updated-max=2017-05-10T06:30:00%2B03:00&max-results=6&reverse-paginate=true was not found on this server. That’s all we know.
/search?updated-max=2017-05-10T06:30:00%2B03:00&max-results=6&reverse-paginate=true