Cookie & Local Storage Policy
Last updated: 28 September 2026 • Complete schedule of cookies, browser storage, purposes, and user consent controls.
1. Statutory Scope & Affirmative Consent (Section 6)
This Cookie & Local Storage Policy explains how Gizcalc India ("we", "us", or "our") uses HTTP cookies, modern browser local storage (localStorage / sessionStorage), and related telemetry technologies across our platform (gizcalc.in). We are committed to complete transparency, purpose limitation, and data minimization in strict accordance with the Digital Personal Data Protection Act, 2023 (Act No. 22 of 2023) and the DPDP Rules, 2025.
Under Section 6 of the DPDP Act 2023, consent given by a Data Principal must be free, specific, informed, unconditional, and unambiguous with a clear affirmative action. Gizcalc strictly rejects the use of "dark patterns", pre-ticked consent checkboxes, or cookie walls that prevent access to free calculators. Non-essential tracking mechanisms remain disabled by default until you grant affirmative consent.
2. Distinguishing Cookies from Browser Local Storage
- HTTP Cookies: Small alphanumeric text tokens placed in your web browser by a web server. Cookies are automatically transmitted back to the host server with every HTTP network request. We keep HTTP cookie deployment to an absolute minimum, utilizing them primarily for security tokens and authenticated session state.
- Browser Local Storage (`localStorage`): A client-side web standard that enables web applications to store key-value data directly on your local device without expiration. Crucially, localStorage data stays inside your browser and is never transmitted over the internet to our servers during general browsing. Gizcalc uses localStorage to store your private calculation bookmarks, dark/light theme preference, and draft notes in the Notepad tool.
3. Complete Itemized Cookie & Storage Inventory
Below is an exhaustive, itemized disclosure of every cookie and client-side storage element deployed on Gizcalc:
| Identifier / Key | Storage Type | Category | Purpose & Statutory Function | Lifespan |
|---|---|---|---|---|
ci_session |
HTTP Cookie | Strictly Necessary | Maintains authenticated session integrity for registered users. Essential for account login. | Session (2 hours idle) |
csrf_cookie_name |
HTTP Cookie | Strictly Necessary | Cryptographic anti-CSRF token mandated by OWASP standards to protect form submissions from forgery attacks. | 2 Hours |
gizcalc_theme |
localStorage | Functional | Stores your UI aesthetic preference (Dark Mode or Light Mode) locally on your device. Never transmitted to server. | Persistent (Local) |
gizcalc_calc_history |
localStorage | Functional | Saves recent calculator outputs locally on your device for fast access without cloud storage. Fully private to you. | Persistent (Local) |
gizcalc_notepad_draft |
localStorage | Functional | Stores scratch notes authored in the Notepad tool locally on your device. Never transmitted to our servers. | Persistent (Local) |
dpdp_consent_status |
localStorage | Consent Record | Records your affirmative opt-in or opt-out selections under Section 6 of the DPDP Act 2023. | 1 Year |
_ga, _gid |
HTTP Cookie | Analytics (Opt-In) | Google Analytics anonymous telemetry measuring page load speed and calculator popularity. Deactivated until consent. | Up to 2 Years |
4. Right to Withdraw Consent & Preference Toggles (Section 6(4))
Under Section 6(4) of the DPDP Act 2023, you have the absolute statutory right to withdraw your consent as effortlessly as granting it. You can launch our interactive Consent Manager at any time by clicking the button below:
5. Browser-Level Cookie Management & Erasure
In addition to our on-site consent controls, you can inspect, block, or delete cookies directly through your browser settings:
- Google Chrome: Settings > Privacy and Security > Third-party cookies > Select "Block third-party cookies" or "Clear browsing data".
- Mozilla Firefox: Settings > Privacy & Security > Enhanced Tracking Protection > Set to "Strict".
- Apple Safari: Settings > Safari > Privacy & Security > "Block All Cookies" or "Prevent Cross-Site Tracking".
- Microsoft Edge: Settings > Cookies and site permissions > "Manage and delete cookies and site data".
6. Contact the Data Protection Officer
For questions or compliance audits regarding our cookie implementation, please contact:
- Data Protection Officer: GizCalc
- Statutory Email: gizcalc@gmail.com
- Support Channel: 100% Digital & Electronic Support • Republic of India