How to get the size of the webpage?

I am designing a program to
analyse the webpage content.
wondering how to get the size of
the webpage including its image's
size and etc. Thanks in advance.

As i know , the getContentLength just return
then number of characters of its HTML code.
By knowing the length of the HTML code, is
not possible for me to calculate its download
time... i wonder is there any way to get the
total size of the page including its image size,
applet size, and etc... Thanks : )

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