Privacy Policy

BTCCO (btcco.online), founded and operated by Jawad JD, respects your digital privacy. Our fundamental architecture is engineered around the principle of 'Client-Side Processing'. All mathematical calculations, portfolio inputs, tax estimates, and currency conversions are computed directly in your web browser. We do not require user account registration, we do not request your real name, email, or physical address to use our tools, and we never harvest or sell your personal financial data.

We display advertisements served by Google AdSense and its certified advertising network partners to support the free operation of our platform. In compliance with Google's Advertising Policies: • Google, as a third-party vendor, uses cookies to serve ads on btcco.online. • Google's use of advertising cookies (including the DoubleClick DART cookie) enables it and its partners to serve targeted advertisements to our users based on their visit to btcco.online and/or other sites across the Internet. • Users may opt out of personalized advertising by visiting Google Ads Settings at https://adssettings.google.com. • Alternatively, users can opt out of third-party vendor cookies for personalized advertising by visiting the Network Advertising Initiative (NAI) opt-out page at https://optout.networkadvertising.org or the Digital Advertising Alliance (DAA) at https://aboutads.info/choices.

A cookie is a small piece of data stored on your computer or mobile device. BTCCO utilizes cookies strictly for the following purposes: • Essential Cookies: Necessary for page routing, dark/light theme persistence, and language preferences. • Advertising Cookies: Employed by Google AdSense to limit ad frequency, prevent fraud, and serve non-intrusive contextual ads. • Analytics Cookies: Anonymous telemetry (such as aggregated page views, general geographic country, browser type) via Google Analytics to diagnose server performance. You have full control to block, restrict, or delete cookies at any time via your browser settings (Chrome, Safari, Firefox, Edge). Disabling cookies will not hinder your ability to use any of our 35 cryptocurrency calculators.

To display real-time Bitcoin tickers, exchange fees, and market sentiment, BTCCO queries public APIs from CoinGecko, Binance, Coinbase, and Alternative.me. These network calls are entirely read-only. No user-entered calculator inputs, transaction sizes, or simulated portfolios are ever transmitted to these third-party endpoints or logged on our servers.

For users residing in the European Economic Area (EEA), United Kingdom, and Switzerland, BTCCO adheres strictly to the General Data Protection Regulation (GDPR): • Right of Access (Art. 15): Inquire what personal data is processed. • Right to Rectification (Art. 16): Request correction of any inaccurate information. • Right to Erasure / 'Be Forgotten' (Art. 17): Request deletion of personal records. • Right to Restriction & Data Portability (Arts. 18 & 20). • Right to Object (Art. 21): Object to any data processing or targeted profiling. Because BTCCO does not operate user accounts or databases of personally identifiable information (PII), we maintain zero persistent personal records. For inquiries, contact our Data Protection Officer at privacy@btcco.online.

For residents of the State of California under the CCPA/CPRA: • Notice of Collection: We do not collect or sell personal information as defined by California law. • Do Not Sell or Share My Personal Information: We do not sell, rent, or trade your personal data to any third parties for monetary consideration. • Non-Discrimination: We provide equal service and identical calculator functionality regardless of your privacy preferences.

BTCCO is directed to general audiences aged 18 and older who are interested in quantitative finance and cryptocurrency education. We do not knowingly collect or solicit personal information from children under the age of 13. If we become aware that a child under 13 has provided us with personal information, we will immediately delete such data.

We implement industry-standard security protocols, including full end-to-end SSL/TLS 256-bit encryption (HTTPS), strict HTTP Content Security Policies, and server-side hardening to protect our infrastructure against unauthorized access.

If you have questions, comments, or formal requests regarding this Privacy Policy or our cookie disclosures, please contact us: • Email: privacy@btcco.online • Founder & Lead Administrator: Jawad JD • Website: https://btcco.online/contact