Last updated: August 19, 2026
Calculator inputs are processed in your browser. Saved estimates use local storage only when you select “Save on device.” Google Analytics loads asynchronously, while AdSense is requested only as an eligible ad placement approaches the viewport.
1. Cookies and similar storage
A cookie is a small value a website or service can ask a browser to store. Browsers may send matching cookies with later requests. Local storage also saves data in a browser, but it is not automatically sent with each request. Pixels, tags and scripts can support measurement or advertising without looking like a visible cookie.
2. Current technology table
| Technology | Current use | Purpose |
|---|---|---|
| Local storage | Used after Save on device | Stores calculator estimates in that browser. |
| Essential hosting/security data | May be processed by infrastructure | Delivers pages, protects the service and records errors. |
| Google Analytics | Configured with the standard asynchronous Google tag | Measures page and interface use without sending calculator values or contact content through the site's custom events. |
| Google AdSense | Loaded near selected ad placements | Requests responsive advertisements after calculators and within substantive guides. |
| Embedded video, maps or social widgets | Not used in the published pages | No embedded third-party player is required for the guides. |
3. Saved estimates
When you select Save on device, the browser stores the estimate locally so it can be displayed again. It does not create an online account. Use the Delete control beside a saved estimate or clear site data in browser settings to remove it. Clearing browser storage, using private mode or changing devices can also remove or separate saved estimates.
4. Analytics
Google Analytics may collect information needed to evaluate page and tool usefulness. Exact area, estimate values, contact fields and message text are excluded from the site's custom measurement events.
5. Advertising
Google AdSense and advertising partners may use cookies or similar identifiers for ad delivery, frequency control, fraud prevention, measurement and personalization subject to user choices and law.
6. Browser and consent controls
You can remove local storage and cookies through browser privacy or site-data settings. Blocking storage may prevent saved estimates or third-party preferences from working. Where Google or another certified consent platform presents privacy choices, use that interface to manage applicable analytics and advertising settings.
7. Do Not Track and similar signals
Browser privacy signals are not implemented uniformly across services. Google and other service providers interpret available consent and privacy signals according to their own documented behavior.
8. Changes to this policy
This page will be updated before materially different cookie, analytics or advertising behavior is introduced. The technology table is intended to describe the deployed site rather than list every tool that might be used someday.
9. Contact
Questions can be sent to contact@greystructurecalc.com. Related details appear in the Privacy Policy.