Yes you can. As Andy mentioned as long as you have access to the content. It would be very helpful, if you make use of the Qlik Rest Connector for fetching data from twitter , Facebook etc.
From Load script >> Web files >> Give internet file location or type the URL.
Find the attached file. I just tried loading the data from the website you metioned.
I see that the url you have mentioned in the URL input box does not have any extension. I would suggest you to check the URL once again.ex:html,htm,aspx etc
As an aside from using RESTFUL connectors or the default offering in Data Loader, there are some other
very good API's that offer power and flexibility and quite a lot of FREE functionality , see below links (no im not associated with them, I have used their excellent tech) ...