An error log is a list of the error messages and warnings that showed up for one reason or another while your visitors were looking through your site. This sort of a log contains raw info about the way the server has dealt with requests in different situations. An error message might appear if, for example, a link leads to a page or a file that's not on the server, if the code on a specific page can't be processed, if anyone is trying to access the Internet site or its back office through an IP address which is blocked by an .htaccess rule and so forth. The data in the error log offers the IP of the website visitor, what error message appeared and the root cause for the server to show it, the full path to the file that caused the error and the precise time of the event. Having this data will permit you to find out if any part of your website has a problem, which you can then resolve. For that reason, your website visitors will have a better experience and you may boost the Internet site for best performance.