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HTTP_REFERER

Posted on 2007-03-29
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Last Modified: 2012-03-15
I want to log the Request.ServerVariables("HTTP_REFERER") when the 1st time a user enters any page on my root domain.  They could enter the site from say a search engine and land on page 2 of my site.  Then they may go to page 3 from there.  When the user land on page 2 I want to log the other dmain address they came from.  How do I do this?
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Question by:jeffreytp
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Expert Comment

by:WMIF
ID: 18818088
you can do this a couple ways.  it depends on your server and if you have access to a file called global.asa.  if you dont have access, its real easy to just track this with a session variable.  make a file that you would include on all of your pages.  this will check for a session variable and record your referer value if that session variable doesnt exist.  if it does, just go back to the first page.

include file:
<%
if not session("gotrefer") = "true" then
  'log http_referer
end if
%>

all other files:
<!--#include file="aboveinclude.asp"-->
<%
'other asp code...
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LVL 22

Expert Comment

by:WMIF
ID: 18818093
oops, forgot one line:


include file:
<%
if not session("gotrefer") = "true" then
  'log http_referer
  session("gotrefer") = "true"
end if
%>

all other files:
<!--#include file="aboveinclude.asp"-->
<%
'other asp code...
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Author Comment

by:jeffreytp
ID: 18818273
Thank you for your input WMIF  I played around with the asp code you provided and this is the code that does what I intended it to do, maybe you didn't quite understand what I was saying:

if not session("referer") > "" then
  'log http_referer
  session("referer") = Request.ServerVariables("HTTP_REFERER")
end if
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LVL 22

Expert Comment

by:WMIF
ID: 18818413
that will definately store the referer information into a session variable, but i figured that you wanted to store this information into a database or file of somesort.  that is what i intended to replace the comment "log http_referer".  sorry i did not explain that better.  do you only want to store this into a session variable?
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Author Comment

by:jeffreytp
ID: 18818434
for now, and then I can take the session and place that into a DB.
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Accepted Solution

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WMIF earned 50 total points
ID: 18819435
i would place the code in the include file to store the value into the db.
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Expert Comment

by:B_Dorsey
ID: 18821041
Just a heads up "Request.ServerVariables("HTTP_REFERER")" is not reliable as most antivirus packages like NORTON block it from showing up
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