An error log is a list of the error messages and warnings that showed up for one reason or another while your visitors were surfing around your website. This type of a log includes raw info about the way the hosting server has dealt with requests in different situations. An error message may appear if, for instance, a link leads to a page or a file that's not on the server, if the code on a certain page cannot be processed, if anyone is trying to access the site or its back office via an IP address that is blocked by an .htaccess rule and so on. The info in the error log offers the IP of the visitor, what error message came out and the basis for the server to show it, the entire path to the file that generated the error and the specific time of the event. Having this information will help you figure out if any part of your Internet site has a problem, which you can then deal with. For that reason, your visitors will have a better experience and you'll boost the Internet site for maximum performance.