1. Client-Side Utility Processing (Zero Telemetry)
Unlike conventional cloud services, e204.store is built as a zero-knowledge, client-side utility suite:
- Clip Board: All multi-slot text data is stored exclusively in your browser’s native
localStorage. No text is ever uploaded to our servers. - Vault: Encryption keys are derived client-side via the
Web Crypto APIusing PBKDF2 (100,000 iterations). Plaintext notes and encryption keys never exit your local device memory. - Burn Chat: Messaging runs ephemerally in browser RAM and is discarded immediately upon session closure without creating database records.
- QR Generator: Vector matrix calculations and SVG renderings happen completely client-side in DOM memory.
- Holiday Planner: Public holiday algorithms run client-side; your schedule and leave numbers are never transmitted.
2. Third-Party Advertising (Google AdSense)
To maintain hosting, domain registration, and continuous research for e204.store, we display advertising via Google AdSense.
- Google, as a third-party vendor, uses cookies to serve ads on our site.
- Google’s use of advertising cookies enables it and its partners to serve ads to users based on their visit to our sites and/or other sites on the Internet.
- Users may opt out of personalized advertising by visiting Google Ads Settings or through AboutAds.info.
3. Server Logs and Hosting Infrastructure
Our hosting edge servers (provided by Vercel CDN) automatically record standard, non-personally identifiable HTTP server request headers (such as requesting IP address, browser user-agent, and requested page URL) strictly for DDoS mitigation, caching performance, and network reliability. These standard server logs are never linked to any client-side utility state.
4. Contact for Privacy Inquiries
If you have questions regarding this Privacy Policy or wish to inspect our client-side cryptography implementation, please email us at privacy@e204.store.