We use Google Analytics to provide us insight into how this site is used. Some metrics that are tracked include which pages are popular, what browsers used (Chrome, Internet Explorer), whether you are using a Mobile device, etc. The information provide to us via Google Analytics is aggregated and presented to us without identifying the actual user. Google Analytics uses a Cookie to facilitate this tracking.
For troubleshooting and security audit purposes, the hosting web server may collect a variety of information about each request. Example of such data include: IP Address, Browser Agent, URL requested, and Response Status Code (e.g., 200, 404, etc.).