You can also look at the server access logs, which are usually stored under access.log in /var/log/apache, or /var/log/apache2, or /var/log/httpd. It should be noted that access to the status page generated by mod_status should be carefully protected as this can be a security concern.

All you have to do is turn on the ExtendedStatus flag in httpd.conf.

Your server status page will then list the VHost and URI of each file
being served.