Hi all,

I need to test if a url exists. I used url.exists() in RCurl package

library(RCurl)

however the test result is kind of weird. For example,

> url.exists("http://www.amazon.com";)
[1] FALSE

although www.amazon.com<http://www.amazon.com> is a valid url. Does anybody 
know how to use that function correctly or the other way to test url existence?

Thanks.

HXD

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