Method to filter websites from the Top referrers list

It would be great if it was possible to filter URLs from specific websites from the top referrers list. Our website has 2 equally important domains that point to the same server (so no redirecting and we don't want to do this for security reasons). When I go look in the top referrers list, 95% of all listed entries are URLs from the current website but from the other domain. For example, this is some random part from the top referrer list which I see when I access the site using http://coccinella.im/ :

156 http://thecoccinella.org/faq 19 min 16 sec ago
110 http://www.thecoccinella.org/about 7 hours 20 min ago
102 http://www.thecoccinella.org/docume ... 14 hours 43 min ago
101 http://www.thecoccinella.org/faq 22 hours 32 min ago
97 http://thecoccinella.org/developmen ... 1 hour 5 min ago
91 http://example.org ... 25 min 13 sec ago

When I access the website using the thecoccinella.org domain, I see the same list but with coccinella.im domains. Hence, it would be great if Drupal allowed me to tell that it should not show any URLs from the domains *thecoccinella.org/* and *coccinella.im/*

Is something like this already possible? If not, can some feature like this be added in a future version of Drupal? Thanks in advance.