sGTM Proxy Client for Braze™
A Google Tag Manager Server-Side Client Template that turns your sGTM container into a Braze custom domain — routing all Braze requests past ad blockers in minutes. Easy to set up.
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What is the Braze sGTM Proxy Client?
The Braze sGTM Proxy Client is a Google Tag Manager Server-Side Client Template that acts as a transparent reverse proxy for the Braze Web SDK. When a browser requests the Braze Web SDK, the template fetches and serves it from your sGTM container — under your own domain, never from Braze's CDN. When the initialized SDK makes Braze requests, those hit your sGTM endpoint, which forwards them to the configured Braze endpoint and streams the response back to the SDK. The result: your sGTM container becomes a Braze first-party endpoint — all Braze network traffic runs through your domain, invisible to ad blockers, while the Web SDK continues to work exactly as before.
Key Features
The Braze Web SDK file is fetched and served from your sGTM endpoint. Browsers request it from your domain — never directly from Braze's CDN.
All Braze requests from the initialized SDK are forwarded to the configured Braze endpoint. Responses flow back to the browser intact.
The Braze ad blocker problem vanishes: SDK file and all requests originate from your own domain. No Braze-specific URLs appear in browser network traffic — indistinguishable from first-party requests.
Built-in API key allowlisting and origin restrictions let you control exactly which callers the proxy accepts.
Your sGTM container becomes a dedicated Braze first-party endpoint. All SDK requests and responses flow through your own server infrastructure — no Braze-owned domains in the network chain.
Point your SDK initialization's baseUrl to your sGTM endpoint. No changes to your existing Braze event tracking logic.
How It Works
- 1
Browser requests the SDK
The browser requests the Braze Web SDK from your sGTM container endpoint (your own domain), not from Braze's CDN.
- 2
sGTM fetches and serves the SDK
The Client Template fetches the Braze Web SDK from Braze's CDN server-side and returns it to the browser.
- 3
SDK initializes and sends Braze requests
The SDK runs as normal. Its data collection requests target your sGTM endpoint instead of Braze directly.
- 4
Proxy forwards to Braze and returns the response
The Client Template receives each Braze request, forwards it to the configured Braze endpoint, and streams the response back to the SDK.
Requirements
- Server-Side Google Tag Manager (sGTM) container
- Braze account with Web SDK enabled
- Braze SDK endpoint URL (e.g. https://sdk.fra-02.braze.eu)
- Optional: API key allowlist and origin restrictions for additional security
Frequently Asked Questions
Stop losing Braze data to ad blockers
Get the sGTM Proxy Client Template and set it up in minutes.
Get it on Gumroad