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Privacy Statement

The California Digital Library (CDL) is committed to protecting your privacy to the greatest extent possible, subject to provisions of state and federal law. While our systems gather a variety of user information in the normal course of providing services, this information is kept for limited purposes only. For a detailed description of what information we collect from visitors to this website and how it is used and managed, please see the CDL Privacy Policy and Baseline Supporting Practices.


The following additional practices, specific to the administration of Calisphere, may also affect the amount of privacy you are afforded on this website.

Google Analytics opt-out

As noted in the CDL privacy policy, this website uses Google Analytics to capture and analyze usage statistics. You may choose to opt-out of having your website activity tracked by Google Analytics. To do so, visit the Google Analytics opt-out page and install the add-on for your browser.

Sharing information with content contributors

The content on this website is contributed by cultural heritage institutions across California. We provide our contributors aggregate reports of usage statistics on the content they have submitted, currently derived from web server logs. Additionally, some contributors use Google Analytics to track usage of their content on this website and may take advantage of data sharing options offered by that service.

Questions about items and collections should be directed to their contributing institutions. Use the "Contact Owner" button or visit the institution’s page for more information. Messages about items or collections submitted through the site Contact Us page may be forwarded to the contributing institution. Your contact information will be included so staff at the contributing institution may follow up with you directly if needed.

Sharing information with CDL

This website provides a “contact owner” button which allows users to directly message a contributing institution with questions about a given item. A copy of this message is additionally routed to CDL in order to monitor the types of questions asked and to assist with a response as necessary. If you do not wish for your message to be sent to CDL, please contact the owning institution directly using the contact information listed on its institution page.

Third party services and APIs

Certain features on this website utilize third party services and APIs such as the Google Maps API, third party hosting of common JavaScript libraries and web fonts, and features such as threaded comments. Information used by an external service is governed by the privacy policy of that service. CDL does not control how information may be used by these services.

User surveys

This website will sometimes conduct user surveys. When doing so, it may set a flash local storage "cookie" so users are only surveyed once per computer. Survey results are collected as Google Analytics events.


This statement was last revised on July 1, 2019 and may be revised at any time.