Privacy Policy
Effective Date: August 9, 2026
Information We Collect
Online Ruler does not collect personally identifiable information. Your calibration settings (such as pixel density preferences) are stored strictly inside your browser’s localStorage and never transmitted to external servers.
Cookies & Google AdSense
We use third-party advertising vendors, including Google AdSense, which use cookies (such as DoubleClick cookies) to serve personalized ads based on past visits to our site or other websites. Users may opt out of personalized advertising by visiting Google Ad Settings.
GDPR & Consumer Privacy Rights
European Economic Area (EEA) and UK users have full control over cookie preferences. You may opt out of personalized cookie tracking at any time using your browser privacy controls.
Google AdSense & DoubleClick Cookie Policy
Third party vendors, including Google, use cookies to serve ads based on a user's prior visits to Online Ruler or other websites. Google's use of advertising cookies (such as the DoubleClick cookie) enables it and its partners to serve ads to users based on their visit to our sites and/or other sites on the Internet.
Users may opt out of personalized advertising by visiting Google Ad Settings or by opting out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info.
General Data Protection Regulation (GDPR) Compliance
If you are located in the European Economic Area (EEA) or the United Kingdom, you have certain data protection rights. Online Ruler does not collect personal identity information. Your screen calibration preferences are stored locally on your device via HTML5 localStorage and can be cleared at any time through your browser settings.