get web page last access date and time

i have the following code that gets info from a web page. Is there a way to get the last time (value) that the page was access. I.e. the page has sit a while and would like to get the last time it was accessed on my computer.

$oXMLHTTP = Objcreate("MSXML2.XMLHTTP")
if isobj($oXMLHTTP) Then
Else
msgbox(0,"","not an obj")
endif
$oXMLHTTP.open("get", "myurl", true)
$oXMLHTTP.Send

msgbox(0,"",$oXMLHTTP.status)
msgbox(0,"",$oXMLHTTP.statustext)
msgbox(0,"",$oXMLHTTP.readystate)
msgbox(0,"",$oXMLHTTP.getresponseheader("keep-alive"))
msgbox(0,"",$oXMLHTTP.getallresponseheaders)