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Why wouldn't they be doing tracking? It seems like a big portion of the benefit to them in doing connect/like/etc. They do make their money selling ads, and they are seemingly hot to collect as much information as possible.

This is Facebook we're talking about, right? Of course they're tracking. If no other reason than for ad retargetting.

It seems like logging enough detail to matter on so many loads would cost more in time and money than the data is worth.

edit: And then I did the math. A 15 byte IP (pretending all IPs are made of four 3 digit numbers) plus a 400 byte URL across 1b accesses is less than half of a terabyte hard drive. Guess we're doomed.

A 15 byte IP (pretending all IPs are made of four 3 digit numbers)

An IP address is just a 32 digit binary number. 4 bytes, not 15. The dotted quad notation is just to help the humans typing them in.

I was thinking in terms of most logs I've seen where it's stored as text.

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