473,666 Members | 2,111 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Does each HTTP Request have "Referer:" header?

regards:

Does each HTTP Request have "Referer:" header?

Any positive suggestion is welcome.
thank you
May goodness be with you all
Jul 24 '05 #1
5 6813
In article <76************ **************@ posting.google. com>,
s9*****@mail.yz u.edu.tw (mike) wrote:
Does each HTTP Request have "Referer:" header?


No. Sometimes there is no useful referring URL and sometimes it is
omitted for other reasons.

--
Henri Sivonen
hs******@iki.fi
http://hsivonen.iki.fi/
Mozilla Web Author FAQ: http://mozilla.org/docs/web-developer/faq.html
Jul 24 '05 #2
On Tue, 05 Apr 2005 17:53:01 +0300, Henri Sivonen <hs******@iki.f i>
wrote:
In article <76************ **************@ posting.google. com>,
s9*****@mail.yz u.edu.tw (mike) wrote:
Does each HTTP Request have "Referer:" header?


No. Sometimes there is no useful referring URL and sometimes it is
omitted for other reasons.


For example, in Opera (at least for some versions) the user can easily
disable the referrer (or referer) logging.

Nick

--
Nick Theodorakis
ni************* *@hotmail.com
contact form:
http://theodorakis.net/contact.html
Jul 24 '05 #3
Once upon a time *Nick Theodorakis* wrote:
On Tue, 05 Apr 2005 17:53:01 +0300, Henri Sivonen <hs******@iki.f i>
wrote:
In article <76************ **************@ posting.google. com>,
s9*****@mail.yz u.edu.tw (mike) wrote:
Does each HTTP Request have "Referer:" header?


No. Sometimes there is no useful referring URL and sometimes it is
omitted for other reasons.


For example, in Opera (at least for some versions) the user can easily
disable the referrer (or referer) logging.


You can do it also in Mozilla Suit and Firefox. What I wonder is, did
many disable that and why, if they do? :)

--
/Arne
*I don't reply to top posters!*
Jul 24 '05 #4
Gazing into my crystal ball I observed Arne <us**@domain.in valid> writing
in news:3b******** *****@individua l.net:
Once upon a time *Nick Theodorakis* wrote:
On Tue, 05 Apr 2005 17:53:01 +0300, Henri Sivonen <hs******@iki.f i>
wrote:
In article <76************ **************@ posting.google. com>,
s9*****@mail .yzu.edu.tw (mike) wrote:

Does each HTTP Request have "Referer:" header?

No. Sometimes there is no useful referring URL and sometimes it is
omitted for other reasons.


For example, in Opera (at least for some versions) the user can easily
disable the referrer (or referer) logging.


You can do it also in Mozilla Suit and Firefox. What I wonder is, did
many disable that and why, if they do? :)


Some firewalls can also disable it. Kerio
<http://www.kerio.com/us/kpf_home.html> does this by default.

People disable it because they do not want it know where they came from,
similar to why people disable cookies, privacy reasons.

--
Adrienne Boswell
http://www.cavalcade-of-coding.info
Please respond to the group so others can share
Jul 24 '05 #5
Arne wrote:
You can do it also in Mozilla Suit and Firefox. What I wonder is, did
many disable that and why, if they do? :)


I worked for a french website that was used by french users, mainly from
their work. The referer was not sent for almost 10% of the whole 400 000
unique visitors each months... This is a big proportion.
Jul 24 '05 #6

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

14
2667
by: Good Man | last post by:
Hi There A client of mine has some banner ads placed on the net. Instead of relying on the sites the ads are posted on tell us how many clicks they are getting, we wanted to track the number ourselves. I settled on using $_SERVER to determine what referred the user to our page. Sure enough, when testing, it all works (ie: i click the ad on 'sample.com', which takes us to my page, and sure enough in our tracking database i see...
9
2968
by: Nicolae Fieraru | last post by:
Hi All, I try to use Request.ServerVariables("HTTP_REFERER") in a script and I discovered it doesn't work as expected. I use XP with SP2 and I created a link on a web site which points to an asp page which should show the referer. I placed a link on www.eleader.com.au/linkref.html and there is a link pointing to www.monitortest.net/referer.asp When I use my computer with XP SP2, and I click on the first link, I get no referer. But when...
9
13396
by: David D. | last post by:
Does the file extension matter when including a JavaScript file in an HTML page? Normally, one would include a JavaScript file in an HTML page using <script src="foo.JS" type="text/javascript"> However, I have found that I can use an alternate file extension, such as <script src="foo.HTML" type="text/javascript"> It works fine with my IE 6 and Mozilla. Will it work with other browsers?
5
9145
by: lefebvre | last post by:
I am writing a website for a real estate client, and am using Dynamic HTML menus. In doing so, the way the browser moves to the next page is via the onclick property and changing the location.href to the next URL. The problem is that this method does not seem to send the RERRER header field in the HTTP request, which causes an error cause they check that the referrer url is correct. The website is on a Windows Server, and we are...
4
2448
by: Martin | last post by:
Hi, From Page1.asp, I use "Server.transfer" to "REDIRECT" to another asp page (page2.asp), in page2.asp I use Request.ServerVariables("URL") and Request.ServerVariables("REFERER") to get the lastpage and the actual page, this method (or property) return incorrect values: "Page1.asp" and "" Why? Martin
4
2878
by: Milan Negovan | last post by:
Is there way to modify the "Headers" collection of the HttpRequest class? Basically, I need to somehow clear the "Referer" header. Any ideas will be much appreciated! Thanks!
4
2593
by: Jake | last post by:
I need to know whether a request for a resource on our web server is coming from a particular affiliate domain or from another domain. In my testing, the HTTP_REFERER variable sometimes is empty. Under what circumstances can it be empty? Is there any way to know the origin of a request, for certain? Thanks Jake
0
7265
by: Alex | last post by:
my app was working fine in VB.NET 2003 (and framework 1.1). Now with VB.NET 2005 (framework 2.0) the uploading to an http server (ie. www.sharebigfile.com) stops with the error "The request was aborted: The request was canceled" after about 7 MB. For example, I might be uploading a 73MB file. After about 11% done the upload aborts. :shake: It works great for files < 5MB. I can upload those every time.
1
6477
by: laredotornado | last post by:
Hi, I'm using PHP 4.4.4 on Apache 2 on Fedora Core 5. PHP was installed using Apache's apxs and the php library was installed to /usr/local/php. However, when I set my "error_reporting" setting to be "E_ALL", notices are still not getting reported. The perms on my file are 664, with owner root and group root. The php.ini file is located at /usr/local/lib/php/php.ini. Any ideas why the setting does not seem to be having an effect? ...
0
8448
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
8356
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
8871
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
8640
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
4198
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
4369
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
2773
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
2011
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
2
1776
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.