I was wondering if its possible to capture all network traffic coming from a single website using
tcpdump. I am interested in capturing the sizes of all incoming and outgoing packets from and to a certain website. However, something like
tcpdump -n host washingtonpost.com will only (I tried this on the terminal) give the traffic coming from
washingtonpost's directly resolved servers and not for example all the external
CDNs, or the
Advertising Servers et cetera. Since I do not know the
IP addresses or
hostnames of these servers beforehand, I cannot create a filter of somekind. Does anyone know of a way I could do this or whether this is indeed possible?