Cookies Policy
Effective Date: January 1, 2026
1. Introduction
This Cookies Policy explains how Limit Calculator ("we", "our", or "us") utilizes cookies, HTML5 local storage, and similar web technologies when you access our website (limitcalculator.net). We believe in complete transparency regarding how data is stored on your device.
2. What Are Cookies and Local Storage?
Cookies are small data files placed on your computer, tablet, or mobile device by websites you visit. They are widely used to ensure websites function properly, retain user preferences across visits, and provide anonymous performance analytics.
In addition to standard cookies, Limit Calculator utilizes HTML5 Local Storage. Local storage allows web applications to store key-value data directly within your web browser without transmitting it across the network on every HTTP request. This ensures high-speed mathematical operations, zero latency, and enhanced privacy since your computations remain entirely on your device.
3. How We Use Cookies & Web Storage
We use cookies and browser storage strictly for legitimate, user-focused purposes:
- Essential Interface & Application State: Remembering your calculator state, input functions, active variable choices (such as solving for x, y, or t), and Taylor series options.
- Theme Preferences: Saving your display theme preference (such as Dark Theme) so that the interface renders with your preferred contrast whenever you return.
- Cookie Consent Decision: Recording your consent choice so you are not prompted repeatedly with the cookie consent banner on subsequent visits.
- Performance & Security: Serving fast, cached math fonts and script assets through reputable Content Delivery Networks (CDNs) to ensure fast load times and DDoS protection.
4. Specific Storage Items Used on Limit Calculator
| Item Name | Type | Purpose | Duration |
|---|---|---|---|
limitcalc_cookie_consent | Local Storage | Stores your acknowledgement of our Cookie Consent banner. | Persistent (1 Year) |
theme | Local Storage | Saves your preferred UI theme (Dark Theme or Light Theme). | Persistent |
calc_history | Local Storage | Temporarily caches recently evaluated mathematical expressions for instant recall. | User-cleared |
__cf_bm / cf_clearance | Cookie (CDN) | Cloudflare security cookie used solely to distinguish legitimate human visitors from malicious bots. | Up to 30 minutes |
5. Third-Party Services & CDNs
Limit Calculator relies on reliable, privacy-respecting Content Delivery Networks (such as jsDelivr and Cloudflare) to deliver open-source mathematical rendering engines (KaTeX) and standard web fonts. These providers do not track your personal identity or sell your information.
6. How to Manage and Control Cookies
You have full control over cookies and local storage. Most web browsers allow you to manage your cookie preferences through their settings. You can set your browser to refuse cookies, delete existing cookies, or notify you when a cookie is placed:
- Google Chrome: Settings > Privacy and Security > Cookies and other site data
- Mozilla Firefox: Settings > Privacy & Security > Cookies and Site Data
- Apple Safari: Preferences > Privacy > Manage Website Data
- Microsoft Edge: Settings > Cookies and site permissions > Manage and delete cookies and site data
Please note that if you choose to disable local storage or block essential cookies, certain features such as persistent theme selection and saved calculator inputs may need to be reset on each visit.
7. Changes to This Cookies Policy
We may update this Cookies Policy periodically to reflect technological improvements or legal requirements. When changes are published, the "Effective Date" at the top of this document will be updated accordingly.
8. Contact Us
If you have any questions or require further clarification regarding our use of cookies and local storage, please reach out to us at hello@limitcalculator.net.