1. Architectural Privacy Philosophy
HexCalc.org operates under a strict privacy-by-design engineering model. We believe that computational tools should perform their functions without collecting personal records, logging numerical inputs, or monitoring user activities. Our technical infrastructure reflects this philosophy by delegating computational workloads directly to the client runtime environment.
Every calculation performed on this website, including hexadecimal arithmetic, bitwise logic operations, and radix conversions, executes strictly within your local browser memory through client-side JavaScript. Your numeric data, memory addresses, and mathematical strings are never transmitted across network boundaries to external server backends for processing or retention.
2. Categories of Information We Do Not Collect
To provide complete operational clarity, we enumerate the personal and computational categories that our systems do not request, process, or store:
- Calculation Operands and Results: We never log, intercept, or record any numerical values entered into our calculators or converters.
- Personal Identity Records: We do not operate user accounts, registration portals, email subscription forms, or identity verification systems.
- Financial and Payment Data: HexCalc.org is completely free of charge and does not process credit card transactions or banking information.
- Cross-Site Profiling Records: We do not track user browsing habits across external websites or maintain behavioral advertising dossiers.
3. Local Storage and Technical Storage Keys
Web browsers provide local storage mechanisms to persist technical configurations across navigation cycles. HexCalc.org utilizes browser local storage for a single dedicated utility function: preserving your visual theme choice.
When you interact with the theme toggle switch in our navigation bar, your browser writes a single entry with key theme containing either light or dark. This value never leaves your personal device. It allows our inline initialization script to configure the appropriate color scheme on subsequent visits without visual flicker. You can clear this key at any time using standard browser clearing controls.
4. Server Infrastructure and Automated Logging
When your browser requests files from our web servers, standard network transmission logs are generated automatically by web server software. These log entries typically contain your public IP address, browser user agent string, referring web page, requested URL path, and timestamp.
These server access records are maintained solely for systems administration purposes, including defending against distributed denial of service attacks, diagnosing routing failures, and monitoring network bandwidth capacity. Server logs are reviewed strictly in response to security incidents and are rotated periodically according to standard data retention schedules.
5. Data Retention Schedules for Technical Logs
Network access logs created by hosting gateways are subjected to strict retention ceilings. Routine HTTP connection entries are maintained in an encrypted rolling buffer for a maximum duration of fourteen calendar days before automated deletion routines purge them permanently.
In circumstances where a specific IP address is linked to malicious probing, automated scraping, or denial of service attacks, corresponding log entries may be isolated for security analysis. Once threat mitigation measures conclude, archived security entries are destroyed in accordance with our retention policy.
6. Third-Party Embedded Content and Privacy Modes
Certain educational articles on HexCalc.org incorporate embedded video tutorials hosted on YouTube to demonstrate manual calculation algorithms. To safeguard visitor privacy, all video iframes utilize YouTube privacy-enhanced domain structure (www.youtube-nocookie.com).
Under the privacy-enhanced mode, YouTube does not set tracking cookies on your device unless you explicitly click the video player to commence playback. Interacting with embedded video players transmits request headers directly to YouTube parent company, Google LLC, and remains subject to Google general privacy policy.
7. External Web Font Assets and Content Delivery
To present clear typography for technical notation, HexCalc.org delivers typography stylesheets through Google Fonts servers using preconnect directives. Your browser requests font files directly from Google content distribution networks.
According to Google published documentation for font delivery APIs, font requests are processed without authenticating user profiles, and font assets are cached locally by your browser to minimize future requests.
8. Cookie Policy Disclosure
HexCalc.org maintains an affirmative zero-cookie policy for all core computational features. We do not place first-party marketing cookies, third-party behavioral trackers, session monitoring cookies, or social network tracking pixels on your machine.
Because our platform does not deploy non-technical tracking cookies, visitors are spared intrusive consent banners and pop-up modal dialogues. Your session remains lightweight, private, and uninterrupted.
9. Do Not Track (DNT) and Global Privacy Control (GPC)
Modern web browsers transmit automated privacy preferences via Do Not Track (DNT) request headers and Global Privacy Control (GPC) signals. Because HexCalc.org never engages in user tracking, targeted marketing, or cross-platform profile construction, our systems honor all DNT and GPC requests by default.
Every visitor receives identical privacy protections regardless of browser configuration. We do not alter page layouts, disable computational capabilities, or inject alternative tracking mechanisms when privacy signals are received.
10. European General Data Protection Regulation (GDPR) Rights
For visitors residing within the European Union and the European Economic Area, our operations adhere strictly to the General Data Protection Regulation (GDPR). Our fundamental compliance mechanism relies on absolute data minimization: because we do not collect personal identifiers, user data cannot be compromised or exposed.
Where technical network logging records may be classified as online identifiers under European jurisprudence, the lawful basis for processing is our legitimate interest in maintaining web server availability and network defense under GDPR Article 6(1)(f). Users retain rights to request clarification regarding server logs by contacting our technical team.
11. California Consumer Privacy Act (CCPA and CPRA)
Pursuant to the California Consumer Privacy Act (CCPA) and the California Privacy Rights Act (CPRA), California residents possess specific statutory rights regarding commercial data practices. We provide the following affirmative declarations:
- HexCalc.org does not sell visitor personal information to third parties under any circumstances.
- HexCalc.org does not share personal data for cross-context behavioral advertising.
- HexCalc.org does not collect sensitive personal information such as government numbers or financial credentials.
12. Summary Matrix of Technical Data Handling
The reference matrix below outlines how each category of technical data is handled across our infrastructure:
| Data Type | Execution Location | Storage Location | Retention Window |
|---|---|---|---|
| Calculation Input | Client Browser RAM | None (Transient RAM) | Cleared on tab close |
| Theme Selection | Client Browser JS | Browser LocalStorage | Persistent until cleared |
| Server Network Log | Edge Gateway | Encrypted Server Disk | Fourteen days rolling |
| Video Preferences | YouTube Embed Frame | Google Infrastructure | Governed by Google |
13. Children Online Privacy Protection (COPPA Compliance)
HexCalc.org provides educational tools suitable for students exploring mathematics and computing fundamentals. Our platform does not knowingly collect, harvest, or request personal identifying data from individuals under thirteen years of age, complying fully with the Children Online Privacy Protection Act (COPPA).
14. Information Security Protocols
We protect the integrity of website distribution through mandatory Hypertext Transfer Protocol Secure (HTTPS) encryption. All web traffic between your browser and our distribution points is encrypted in transit using modern Transport Layer Security (TLS 1.3) protocols. This encryption ensures that code assets cannot be intercepted or modified by intermediary network observers.
15. Amendments and Contact Procedures
We reserve the right to revise this Privacy Policy periodically to reflect technological changes, regulatory guidance, or platform updates. Any modifications will be posted directly to this URL with an updated effective date header.
Questions or formal inquiries regarding our data protection standards may be directed to our technical administration team through our dedicated communication channels on our contact page.