Does each HTTP Request have "Referer:" header?

mike

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

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6799

Henri Sivonen

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.

--
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

Nick Theodorakis

On Tue, 05 Apr 2005 17:53:01 +0300, Henri Sivonen <hs******@iki.fi>
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.

Nick

--
Nick Theodorakis
ni**************@hotmail.com
contact form:
http://theodorakis.net/contact.html

Jul 24 '05 #3

Arne

Once upon a time *Nick Theodorakis* wrote:

On Tue, 05 Apr 2005 17:53:01 +0300, Henri Sivonen <hs******@iki.fi>
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? :)

--
/Arne
*I don't reply to top posters!*

Jul 24 '05 #4

Adrienne

Gazing into my crystal ball I observed Arne <us**@domain.invalid> writing
in news:3b*************@individual.net:

Once upon a time *Nick Theodorakis* wrote:
On Tue, 05 Apr 2005 17:53:01 +0300, Henri Sivonen <hs******@iki.fi>
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

Pierre Goiffon

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.

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Does each HTTP Request have "Referer:" header?

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