Cookie Policy
Last updated: September 14, 2026 • Official cookie management guide for penggarisonline.com
1. What Are Cookies & Web Storage?
Cookies are small text fragments deposited onto your computer or smartphone by your web browser when visiting websites. Cookies are ubiquitously utilized to ensure reliable web functionality, preserve customized user settings, and provide diagnostic performance data to site operators.
In addition to standard HTTP cookies, modern web architectures employ client-side "Web Storage" (localStorage) to retain user preferences with zero network bandwidth overhead.
2. Categories of Cookies & Local Storage We Use
At penggarisonline.com, we classify our cookies and browser storage mechanisms into three distinct tiers:
Client Preference Storage (localStorage)
Local browser storage utilized to maintain: calibrated PPI ratio, active measurement units (cm/mm/inches), dark/light theme mode, and marker lock states. This data never leaves your client device.
Cloudflare Infrastructure & Edge Security
Utilized by Cloudflare Pages edge network to authenticate non-malicious browser traffic, protect against volumetric DDoS attacks, and speed up global delivery caching. No PII is stored.
Google AdSense & DoubleClick DART Cookies
Google and accredited third-party advertising partners deploy cookies to serve contextually relevant advertisements, limit ad exposure repetition (frequency capping), audit invalid clicks, and gauge marketing campaign performance.
3. Opting Out of Google Personalized Advertising
You maintain absolute discretion over whether you wish to receive personalized or non-personalized advertisements. To manage or opt out of Google personalized advertising, please visit:
Customize ad preferences across Google platforms
Control brands and ad topics in search and web
Comprehensive opt-out for hundreds of ad networks
European interactive digital advertising choices
4. How to Manage and Delete Cookies in Your Browser
Most modern web browsers allow you to inspect, block, or purge third-party cookies directly through your browser settings. Follow these instructions for your browser of choice:
Navigate to Settings > Privacy and security > Third-party cookies > Select "Block third-party cookies" or manage site-specific permissions.
On iPhone/iPad: Go to Settings > Safari > Advanced > Block All Cookies. On macOS: Safari > Preferences > Privacy > Check "Prevent cross-site tracking".
Open Menu > Settings > Privacy & Security > Under "Enhanced Tracking Protection", select Standard or Strict mode.
Navigate to Settings > Cookies and site permissions > Manage and delete cookies and site data > Toggle "Block third-party cookies".
Note: Blocking third-party cookies will not hinder the functionality of our on-screen ruler tools, but will result in non-personalized advertisements.
5. Inquiries & Contact
If you have further questions regarding our cookie practices or local storage implementation, please reach out to: