how to get the connexion speed?

Anon

i want to know, if it's possible, the connexcion speed of the visitors of my site (28k,56k,dsl,etc)

thx for help

[deleted]

Not in an easy way.

Anon

try and see how the quicktime protocol works - it allows the user to set his/hir transferrate... not 100% reliable!

abagaglia

Hi,
I guess you can never tell since connection speed depends on negotiation between your user modem and his/her provider and then again between all nodes.
In theory even if you could test the transaction speed you couln't be sure at all.
An adsl connection can speed as low as 4Kb/sec in some cases of high traffic or error prone line.
Anyways, if anybody knows share it with me!

Anon

You could start with a exec('ping $hostname'); and that would give you some usefull information... poissbily enoguh to pass to a gesstimator of bandwidth... bu t unless you want to have them dl a 500 meg file theere is really no 100% method of determining bandwith on a client machine.

-Jon

[deleted]

ping ony tells you how fast a packet can travel from one end to another, this tells you nothing about the max bandwidth of the client.
Ping will give the same result wether I use a 33k modem or a 57k modem or even adsl (provided I use the same ISP ofcourse)

And even downloading 500k (500megs is a bit much don't you think?) will only tell you how fast the network between you and the client is.
A 512mbit line can easily handle 50-60KByte/sec, but you'll rarely see that happen on the internet.

So the most reliable option would be to let the user enter his/her connection speed on an html page.