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Cookie Policy

Last updated: March 30, 2026

What Are Cookies?

Cookies are small text files stored on your device when you visit a website. They are widely used to make websites function, remember your preferences, analyse traffic, and deliver advertisements.

Cookies We Use

Essential Cookies

Always Active

Required for the website to function. Cannot be disabled.

  • Session management
  • Security (CSRF protection)
  • Load balancing
  • Cookie consent preference (localStorage)

Analytics Cookies

Optional

Help us understand how visitors interact with the site so we can improve it. Data is aggregated and anonymous.

Provider: Vercel Analytics

  • Pages visited
  • Time on page
  • Referring source
  • Device & browser type

Advertising Cookies

Optional

Used by Google AdSense to display relevant, personalised ads. This advertising revenue keeps PureUnits free.

Provider: Google AdSense

  • Interest-based ad targeting
  • Frequency capping (same ad not shown too often)
  • Conversion tracking
  • Ad performance measurement

Managing Your Cookies

You can control non-essential cookies via our cookie banner or your browser settings. Note that disabling some cookies may affect site functionality.

ChromeSettings → Privacy and security → Cookies and other site data
FirefoxOptions → Privacy & Security → Cookies and Site Data
SafariPreferences → Privacy → Manage Website Data
EdgeSettings → Privacy, search, and services → Cookies and site permissions

Opt out of personalised ads: Google Ads Settings or Digital Advertising Alliance.

Cookie Retention

Session Cookies

Expire when you close your browser. Used for temporary state management.

Persistent Cookies

Remain for a set period (typically 13 months) or until deleted manually.

Do Not Track

Some browsers transmit a "Do Not Track" (DNT) signal. We honour DNT signals and reduce non-essential tracking when DNT is detected.

Policy Updates

We may revise this Cookie Policy to reflect changes in technology or legal requirements. The "Last updated" date at the top of this page will always reflect the most recent version.