This website may track visitors to a limited extent. Specifically, the IP address used for access together with the dates and times of access may be recorded. This information is used to analyze trends and to improve website performance. Any information recorded is permanently deleted after a certain period and is not shared with anyone. Some of the calculators on this website may create sessions or use session ids in aiding calculation and generating calculation results. If you use the I Bond calculator, the system will create a datafile for you to download, and only you will have access to that datafile. Any such files created will be automatically deleted after a short period using a script, but a record is kept of the number of such files deleted.
If you have questions, send me a message using the contact form on the About page.