On 06/12/16 15:15, Kim Holburn wrote:

https creates an encrypted connection with an IP address before any data is transmitted.  
In this case the only "metadata" as such is a connection between 2 IP addresses 
and a destination port number.  Since there can be a number of virtual servers on one IP, 
it may not be enough data to identify the website you visited.

FWIW, HTTPS can support multiple virtual servers on a single IP address using a mechanism called SNI (server name indication), and in that mechanism the host name is sent unencrypted, meaning that it can be captured and recorded. Whether or not an ISP/provider is required to do that I have no idea.

https://security.stackexchange.com/questions/86723/why-do-https-requests-include-the-host-name-in-clear-text

Hamish
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