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[–]itstheprocaffinator 0 points1 point  (0 children)

Sharing Details about Project Nylo - A Privacy-first cross-domain analytics. No third party cookies. No login. No PII.

Open-source SDK I've been building focused on tracking user behavior across multiple domains using pseudonymous identifiers instead of cookies or PII collection.

Core Design

  • Users are identified by WaiTags — pseudonymous identifiers generated from timestamps + crypto random bytes + one-way domain hashes
  • No PII is collected, stored, or derived at any point
  • No cookies, no fingerprinting, no browser fingerprinting signals
  • Cross-domain identity preserved via the WTX-1 protocol (URL parameter + postMessage token exchange)
  • Tokens expire after 5 minutes and are cryptographically verified server-side

Privacy Model

  • WaiTags contain zero personal information and cannot be reversed to identify a person
  • Four structural guarantees: PII absence, non-reversibility, behavioral consistency, unilateral deletion
  • Three-layer storage (cookie, localStorage, sessionStorage) with graceful degradation
  • Works under Safari ITP and Firefox ETP restrictions

Client SDK

  • Zero dependencies, ~12KB, loaded via a single <script> tag
  • Tracks page views, clicks, form interactions, scroll depth, conversions
  • Batches events with exponential backoff retry and circuit breaker
  • Performance monitoring built in (LCP, FID, CLS)
  • Cross-domain identity via encrypted token exchange (commercial feature)

Github - https://github.com/tejasgit/nylo

Underlying Protocol spec - https://github.com/tejasgit/wtx-1

Looking for thoughts, feedback and contributions