I have a opencart site that gets a few hundred visitors a day and was using about 60-80 megs of bandwidth per day. A few days ago bandwidth usage has jumped to over 1gig per day but daily visitors seem the same. Its in a cpanel account, how can I tell what is using up all the bandwidth? thx!
Do you have root access to the server, or is this shared hosting? If just shared hosting, you can try AWStats or Webalizer and see if you can determine anything from that. If this is a VPS or such, you can run iftop to get some real-time statistics.