只要不是HTTP_REFERER来源于（google.com google.cn *.google.com *.google.cn baidu.com *.baidu.com）这些网址来源的请求，就通通转发至404

复制代码 代码如下:

<%

Dim a, reg

a = Request.ServerVariables("HTTP_REFERER").Item

Set reg = New RegExp

reg.Pattern = "^http://(?:[^.]*.)?(?:google.com|google.cn|baidu.com)(/|$)"

reg.IgnoreCase = True

If Not reg.Test(a) Then

Set reg = Nothing

Response.Status = "404 File Not Found."

Response.End

End If

Set reg = Nothing

' .... 继续

%>

复制代码 代码如下:

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>

<%Dim OK_URL,URL,HTTP_REFERER

'自定义需要过滤的字串,用 "|" 分隔

OK_URL= "google.com|google.cn|baidu.com"'排除信息

OK_URL= split(OK_URL,"|") '分割排除信息

URL="404.htm" '设定指向页面

HTTP_REFERER=Request.ServerVariables("HTTP_REFERER")'获取来源网址

If HTTP_REFERER<>"" Then

For Each REFERER In HTTP_REFERER

For i=0 To Ubound(OK_URL)

If Instr(LCase(HTTP_REFERER(REFERER)),OK_URL(i))=0 Then'如果来源网址不是以上排除项的话，那就直接返回所指向的网页！

Response.Redirect(URL):Response.End()

End if

Next

Next

End If%>