ASP security Settings: Prohibit submission of data from outside

Use the ASP to minimize server-side workloads, so you should use JavaScript more, and submit all submitted fields to the server using JavaScript or VBScript, so that the server does not have to be tested again. And at the time of submission, someone might modify the script to submit it locally, so there is a security issue, so it should be required to commit from a server-broken path, and no other address submission is invalid:

<%
dim server_v1,server_v2
server_v1=Cstr(Request.ServerVariables("HTTP_REFERER"))
server_v2=Cstr(Request.ServerVariables("SERVER_NAME"))
if mid(server_v1,8,len(server_v2))<>server_v2 then
response.write "<br><br><center><table border=1 cellpadding=20 bordercolor=black bgcolor=#EEEEEE width=450>"
response.write "<tr><td style='font:9pt Verdana'>"
response.write "你提交的路径有误，禁止从站点外部提交数据请不要乱该参数！"
response.write "</td></tr></table></center>"
response.end
end if
%>

For example, the code above is named Check_path.asp save, and each time you encounter a form submission, the reference is OK:

<!--#include file="check_path.asp"-->