Current operation
The site does not ask a reader to create an account or save calculator inputs to a Material Math Guide database. Calculations are performed in the browser. Our hosting provider may still process ordinary request information needed to deliver and protect the site, such as an IP address, request time, requested URL, browser and device information, referral data, security signals, and short-lived operational logs.
Google Analytics 4 (GA4) is not loaded by default. It is available only in a build with analytics explicitly enabled and a valid measurement ID, and even then the site makes no Google tag request until this browser has an explicit “granted” analytics choice. Use the persistent Cookie settings control in the footer to allow, deny, review, or revoke that choice. Material Math Guide does not load Google AdSense site code or display publisher ads.
Conditional Google services
The privacy-gated consent mode v2 sequence keeps analytics_storage, ad_storage, ad_user_data, and ad_personalization denied before loading. After explicit analytics consent, only analytics_storage changes to granted; every advertising signal remains denied. If a configured visitor allows analytics, GA4’s default web collection can include users, sessions, and usage statistics, page and referral information, approximate geolocation, browser or device characteristics, and analytics identifiers such as a _ga client ID when analytics storage is permitted. Google describes these fields in its GA4 data collection reference.
The site stores only granted or denied under the versioned local key pmg_consent_v1. Unknown or corrupted values are treated as denied and removed. The preference does not contain calculator inputs or sensitive data. Revoking consent prevents loading on future pages and returns all four consent signals to denied. If GA4 already loaded on the current page, the tag cannot be unloaded; the interface therefore tells the reader to reload to stop that current page session. Retention follows configured Google product controls and applicable terms.
Choices, regions, and contact
The current Cookie settings control covers only this site’s optional analytics preference. It is not a Google-certified consent management platform and does not replace legal advice for regional privacy requirements.
Google documents basic consent mode, setting and maintaining consent choices, its EU User Consent Policy, and policy help page. Contact the editorial team through /contact/ with a privacy request; do not send sensitive identity documents unless specifically and securely requested. This notice is informational, not legal advice or a guarantee of compliance.