Basicly you can use the folliwing code:
<%
url = “http://www.espn.com/main.html”
set xmlhttp = CreateObject(“MSXML2.ServerXMLHTTP”)
xmlhttp.open “GET”, url, false
xmlhttp.send “”
Response.write xmlhttp.responseText
set xmlhttp = nothing
%>
For more detail, and for an example in javascript visit ASP FAQ.