The article "Ensuring a website safety" is provided by Sophos Plc and SophosLabs.
Server log files is a very important site management tool. Usually, HTTP servers can maintain access and error logs separately. If this feature is available you should use it, since it can be useful for subsequent analysis.
You should also view the log files regularly because they can help to learn more about threats to the site. Log files allow you to track potential security threats because they record all successful and failed attempts to access the site.