Which type of log records details about every request made to a web server?

The access log is a critical component of web server management, as it meticulously records every request made to the server. This log includes important information such as the IP address of the visitor, the requested URL, the HTTP response code, the size of the response, and the user agent string. Each entry typically corresponds to a distinct request, enabling web administrators to analyze and monitor traffic patterns, troubleshoot issues, and gather insights into user behavior and site performance.

In contrast, the error log is designed to capture only errors and issues that occur during the operation of the server, while an activity log may track various server activities but not specifically requests. The audit log serves a different purpose, focusing on security and compliance by documenting changes and access to systems or files. Thus, the access log stands out as the dedicated record for tracking every request made to a web server.