check if a file exist on the internet and get the size

[kucingkembar]

hi, sorry for my bad english,
i currently create this code:

#image_name = 'https://www.google.co.id/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png'
image_name = 'C:\DumpStack.log'
from os.path import exists
if exists(image_name):
    import os
    statinfo = os.stat(image_name)
    print(image_name + " exist, with size : " + str(statinfo.st_size))
else:
    print(image_name + " do not exist")

but somehow does not work at a file on the internet,
can someone convert this code or give me the clue on the google keyword?
thank you, have a nice day