Cookie Policy
Last updated: August 1, 2026
1. What Are Cookies?
Cookies are small text files placed on your device (computer, tablet, or mobile phone) when you visit a website. They are widely used to make websites work efficiently and to provide information to website owners.
We also use similar technologies including web beacons (clear pixel GIFs), local storage, and JavaScript-based tracking. This policy refers to all of these collectively as "cookies".
2. How We Use Cookies
Margitrix uses cookies for three distinct purposes:
2.1 Essential Cookies
| Cookie Name | Purpose | Duration |
|---|---|---|
| theme | Stores your light/dark mode preference so it persists across visits. | 1 year |
Essential cookies cannot be disabled as they are required for the website to function correctly.
2.2 Analytics Cookies
These cookies help us understand how visitors use Margitrix so we can improve our tools and content. All data is aggregated and anonymised.
| Provider | Purpose | Privacy Policy |
|---|---|---|
| Vercel Analytics | Tracks page views, visitor counts, device types, and referral sources. No personally identifiable information is collected. | View Policy |
| Vercel Speed Insights | Measures Core Web Vitals (LCP, CLS, INP) to monitor and improve page performance. | View Policy |
2.3 Advertising Cookies
Margitrix uses Google AdSense to display advertisements. This allows us to keep all our calculator tools free for users. Google AdSense places cookies to serve personalised ads based on your interests and prior browsing behaviour.
| Provider | Purpose | Duration |
|---|---|---|
| Google AdSense / DoubleClick | Serves personalised advertisements. Tracks ad impressions, clicks, and conversion events to improve ad relevance. | Up to 2 years |
| Google Ads / Google Marketing Platform | Remarketing, frequency capping, and ad performance measurement. | Up to 13 months |
3. Your Choices and Opt-Out Options
You have several options for controlling cookies:
3.1 Browser Settings
You can control or delete cookies through your browser settings. Most browsers allow you to:
- View all cookies stored on your device.
- Delete all cookies or specific cookies.
- Block all cookies or cookies from specific sites.
- Block third-party cookies (recommended for advertising opt-out).
Browser cookie guides:
3.2 Opt Out of Advertising Cookies
- Google Ad Settings — manage personalised ad preferences
- NAI Opt-Out Tool — opt out from multiple advertising networks
- Digital Advertising Alliance Opt-Out
- Your Online Choices (EU)
Note: Opting out of advertising cookies does not mean you will see fewer ads — it means the ads you see will be less relevant to your interests.
4. Do Not Track
Some browsers send "Do Not Track" (DNT) signals to websites. We honour Do Not Track signals where feasible. When DNT is enabled, we disable personalised advertising cookies while maintaining essential and aggregate analytics cookies.
5. Changes to This Cookie Policy
We may update this Cookie Policy to reflect changes in our practices or applicable laws. We will update the "Last updated" date and, for significant changes, add a notice to our website.
6. Contact Us
For questions about our use of cookies, please contact us via our Contact page or email privacy@margitrix.app.