1) Awstats
Path : cpanel >> Metrics >> Awstats
Overview:
The Awstats interface displays traffic statistics from the Advanced Web Statistics (AWStats) software, which compiles information about how users access your website.
View AWStats data:
To view AWStats traffic statistics for a domain, click View for the domain that you wish to view. A new interface will appear that displays the AWStats traffic statistics for that domain.
AWStats displays the following details about your website’s visitors:
Monthly, daily, and hourly averages in graphs and tables.
The links through which visitors access your website.
HTTP codes.
Operating systems.
Browser information.
Locales of origin.
Following are the images for the same.
2) your Domain details in Awstats 
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2) Bandwith
path: cpanel >> Metrics >> Bandwith
The Bandwidth interface displays bandwidth usage information in several sets of graphs. Each graph contains information about bandwidth usage over a specific period of time.
The graphs display bandwidth information in six categories:
HTTP — Web traffic.
POP3 — Email that you retrieved from your accounts on the server.
IMAP — Email that you retrieved from your accounts on the server.
FTP — File transfers.
SMTP — Email that your accounts sent.
Total (all services)
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3) Visitors
path: cpanel >> Metrics >> Visitors
This function displays up to 1,000 of the most recent entries in the Apache log for a given domain’s website.
we can see IP via visitors which visited our website recently and their IP address in the following sections.
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4)Error
The interface displays up to 300 of the most recent entries in Apache’s error logs, in reverse chronological order.
Error details
The interface includes entries in the /usr/local/apache/logs/suexec_log file and the /usr/local/apache/logs/error_log file.
The interface displays error log entries from the user’s home directory. The interface also displays /usr/local/apache/logs/suexec_log file entries that include the username for the account.
To view older entries, access the individual log files.
The Apache logs record all of the requests that Apache handles. Tasks that other services handle may have separate log locations.
Note: once the error occurs it also makes an error_log file under a certain domain under Public_html.