ADSL Sniffing

[darren]

Hello Folks,

I have noticed that in website stats something along the lines of "
dsl.madeupisp.c o.uk" could this be used to determine whether or not a surfer
is using broadband?

Or is there a better way?

Cheers
Darren

[Michel]

Re: ADSL Sniffing

yeah.....
<SELECT name="inetspeed ">

blah blah blah

"darren" <darren@NOSPAMe mdnet.co.uk> wrote in message
news:d9gfsd$kj9 $1@nwrdmz01.dmz .ncs.ea.ibs-infra.bt.com...[color=blue]
> Hello Folks,
>
> I have noticed that in website stats something along the lines of "
> dsl.madeupisp.c o.uk" could this be used to determine whether or not a[/color]
surfer[color=blue]
> is using broadband?
>
> Or is there a better way?
>
> Cheers
> Darren
>
>[/color]

[CyberDog]

Re: ADSL Sniffing

darren wrote:[color=blue]
> Hello Folks,
>
> I have noticed that in website stats something along the lines of "
> dsl.madeupisp.c o.uk" could this be used to determine whether or not a surfer
> is using broadband?
>
> Or is there a better way?
>
> Cheers
> Darren[/color]

Yes, I'm not sure what function is used to find an domain name from the
IP, but after you have it it's just preg_match for the word "dsl".

[Oli Filth]

Re: ADSL Sniffing

CyberDog said the following on 24/06/2005 10:03:[color=blue]
> darren wrote:
>[color=green]
>> Hello Folks,
>>
>> I have noticed that in website stats something along the lines of "
>> dsl.madeupisp.c o.uk" could this be used to determine whether or not a
>> surfer is using broadband?
>>
>> Or is there a better way?
>>
>> Cheers
>> Darren[/color]
>
>
> Yes, I'm not sure what function is used to find an domain name from the
> IP, but after you have it it's just preg_match for the word "dsl".[/color]

Not reliably. e.g. Just looked up my external IP with nslookup, and it's

brnt-bam-1.inet.ntl.com *

And I'm definitely on broadband.

The domain name for the external IPs from the network at my university
also have no mention of "dsl", or anything like that.


* it's not anymore, I've reconnected, in case anyone bad wanted to do
naughty things to my connection ;)

--
Oli

[Alvaro G Vicario]

Re: ADSL Sniffing

*** darren wrote/escribió (Fri, 24 Jun 2005 08:22:37 +0000 (UTC)):[color=blue]
> I have noticed that in website stats something along the lines of "
> dsl.madeupisp.c o.uk" could this be used to determine whether or not a surfer
> is using broadband?[/color]

Only if all broadband users in the world connect from Great Britain with
MadeUpISP(tm) and that ISP has separate IP ranges for modem and broadband
;-)

[color=blue]
> Or is there a better way?[/color]

I can think of three better ways:

1) Ask user
2) Perform a speed test
3) Optimize your site so line speed is not important


--
-- Álvaro G. Vicario - Burgos, Spain
-- http://bits.demogracia.com - Mi sitio sobre programación web
-- Don't e-mail me your questions, post them to the group
--