Cookie Policy
This page explains what cookies are, which ones we use, and how you can control them.
What are cookies
Cookies are small text files stored on your device when you visit a website. They let the site remember preferences, measure traffic, and serve ads relevant to your interests.
Cookies we use
Strictly necessary
Required for the site to function. You cannot opt out of these.
- Session / preference cookies — remember consent choices and display settings.
Analytics
Help us understand aggregated usage patterns across the site.
- Google Analytics 4 — cookies named
_gaand_ga_WG40SW5H5J. Measure page views, session duration, and broad audience characteristics. Expire after 2 years. Opt out with the Google Analytics Opt-out browser add-on.
Advertising
Used by our ad partners to deliver ads relevant to your interests and measure ad performance. Advertising cookies are only loaded once AdSense is active on the site.
- Google AdSense — cookies including DoubleClick DART and others. See Google Ads technology policy.
Your choices
Consent banner — where required (EU/UK/EEA and certain US states), a consent banner is shown when personalized advertising is active on the site. It lets you accept, reject, or customize categories. Independent of the banner, you can always control cookies through your browser settings and the opt-out links below.
Browser controls — you can block or delete cookies via your browser settings. Blocking strictly-necessary cookies may break functionality.
Opt out of personalized ads — visit Google Ads Settings, youronlinechoices.eu, or optout.aboutads.info.
California residents — to opt out of the sharing of your information for advertising purposes, use Google Ads Settings and aboutads.info, or email info@materialcalc.net.
Changes
We may update this policy. Changes are effective when posted.