> Is it possible to access log files to analyse incoming traffic?
Yes. Your log files are in the directory /logs/ that you see when you connect in FTP.
The logs files are kept at least for one week (currently we keep them for 30 days).
You have access to the access logs (access_log) and the errors logs (error_log).
The file from the previous day has the extension .1; the file from 2 days ago has the extension .2; ...