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Like most other web sites, we keep access logs that contain information about each request. We use this information to help us operate the site and manage its performance, for error reporting and investigation, and in aggregate for statistics about visitors and site usage.
These log files contain the IP address of the viewer that made the request to the site (usually the IP address of your computer). For detailed technical information about the format and contents of the log files, you can consult the service documentation.
The log files are created at various locations (“Edge Locations”) across the world and ultimately processed and stored at (potentially other) global locations (current list). Actual locations used vary from time to time according to operational needs.