Privacy & Google Analytics
Your choices about website measurement.
Updated October 25, 2026. Inventor Underground publishes independent invention guides and a historical archive. For privacy questions, email info@inventorunderground.com or call 650-897-7755.
Google Analytics
Google Analytics is off until you enable it in this browser. If enabled, Google Tag Manager loads Google Analytics to measure page views and clicks on our phone and email links. A click records an intention to contact us, not a completed call, sent email or enquiry. Google receives browser and device information and processes the connection used to deliver these events. Analytics cookies distinguish visits.
We remove query strings and URL fragments from the page address and referrer sent to Analytics. We do not send form values, message text or contact details you enter. We do not enable advertising features, Google signals or automatic collection of user-provided data.
Google Analytics requires JavaScript and your explicit choice.
Your choice is stored locally in this browser. Turning it off removes our Analytics cookies and reloads this page without Google tracking. Global Privacy Control keeps Google Analytics off even when an earlier choice enabled it. Clearing browser storage resets the choice to off.
Hosting and communications
Cloudflare hosts and protects this website. Its operational logs and hosting statistics are separate from Google Analytics and are not disabled by the controls above. Cloudflare Web Analytics may measure website performance without Analytics cookies.
Email links open your email application; phone links open your calling application. Sending an email shares its contents and sender information with our mailbox provider and the receiving Gmail inbox. Avoid sending sensitive information through these links.
More information
Read Google's privacy policy, Cloudflare's privacy policy and our editorial policy.