An error log is a list of the error messages and warnings that appeared for one reason or another while your visitors were browsing your website. Such a log provides raw info about the way the hosting server has dealt with requests in various situations. An error message could appear if, for instance, a link leads to a webpage or a file that's not on the web server, if the code on a given page can't be processed, if anyone is trying to access the site or its back office through an IP address that is blocked by an .htaccess rule and so forth. The info within the error log includes the IP of the site visitor, what error message displayed and the root cause for the hosting server to show it, the full path to the file which generated the error and the specific time of the event. Having this info will enable you to find out if any part of your Internet site has a problem, which you could then resolve. Consequently, your website visitors will have a better experience and you may boost the Internet site for best performance.