Relay is a privacy-first web analytics platform, a GTM-class tag manager, and a first-party event gateway — all self-hostable in a single app. Measure people respectfully, ship tags without a developer, and prove your conversions actually reach GA4, Meta, and everywhere else.
Open source & self-host free · Runs fully offline locally · Admin portal: analytics.hwsinc.com
Analytics, tag management, server-side forwarding, and the diagnostics to prove it all works — designed to fit together instead of fighting each other.
Cookieless measurement that doesn't need a consent banner for the basics. You get real numbers; visitors keep their privacy.
A GTM-class visual container builder — build, preview, lint, publish, and roll back tags without touching code.
A first-party event gateway on your own domain — the sGTM / Stape-class piece, without the second bill.
Stop guessing whether your tracking works. Relay shows you the real HTTP response from every destination — and says it in plain language.
Google's free stack is powerful — and it makes you the product, buries your data behind sampling and consent walls, and never actually tells you whether a conversion arrived. Relay is the opposite trade.
| GA4 + GTM | Relay | |
|---|---|---|
| Privacy & consent | Consent banner required; visitor data leaves your domain | Cookieless by default — daily-rotating hash, raw IP/UA never stored |
| Data ownership | Your data lives in Google's cloud, sampled & thresholded | First-party & self-hostable — runs in your own Azure or fully offline |
| "Did it actually work?" | DebugView, then hope. No proof a destination accepted the event | End-to-end trace + verdict showing each destination's real HTTP response |
| Server-side forwarding | Separate sGTM setup, or a paid vendor like Stape | Built in — first-party gateway, outbox, retries, dead-letter management |
| Ad-blocker resilience | Third-party requests widely blocked | Anti-adblock loader + Google Tag Gateway reverse proxy, all first-party |
| Cost | "Free" — you pay in data & lock-in; sGTM/vendor adds a bill | Self-host free & open; scale-to-zero Azure deploy |
Open the live demo store, complete a purchase, and watch it travel browser → server → GA4 in a real trace waterfall. Then run the whole thing yourself.