 Do-Not-Track Signals and Similar Mechanisms. Some web browsers may transmit do-not-track signals to the websites with which the user communicates. Because of differences in how web browsers incorporate and activate this feature, it is not always clear whether users intend for these signals to be transmitted, or whether they even are aware of them. Because there currently is no industry standard concerning what, if anything, websites should do when they receive such signals, the Services currently do not take action in response to these signals. If and when a final standard is established and accepted, we will reassess how to respond to these signals. In the meantime, please see Online Tracking & Advertising for additional information about privacy choices that may be available to you with respect to targeted advertising. 