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204 E. 2nd Avenue
San Mateo, CA 94401

Tel: + (650) 265-7473
Email: guid@guid.org

 

GUID.org is a simple service dedicated to providing internet efficiency through anonymous identity management. GUID.org benefits consumers by reducing page load times, allowing more relevant advertising, and providing a single, central opt-out service. GUID.org benefits the internet advertising ecosystem by reducing bandwidth and complexity, and allowing server-to-server integration.

We've tried to answer the most common questions in our FAQ. If your question isn't answered there, feel free to contact us. You may also opt out of your GUID permanently. GUID.org does not store or collect information any information about users - see our privacy policy for more details.