Jaan, can't you use a panel on your site (hoster)? The quality of that tool may of course vary from hoster to hoster. It should also be possible to write a (php?) script to analyse the traffic in more detail. But since 99 % of all php programming needs are said to be solved already, there shoud be a php script that does the job if you use that language.

Googling:

php traffic analyse script

gives a lot of hits here.

You can vary that search to get more relevant hits.

The best solution may be integrated with a database, so you can make your own analytics software.

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