Why network-layer monitoring?
In modern web architectures, the dataLayer doesn’t always tell the whole story. Data can be corrupted during transmission, blocked by browsers, or sent via legacy systems that bypass the DOM entirely.
Flow Monitor captures the “handshake” between the user and your servers. It looks beyond what happens on the page (DOM) and monitors deep network requests (HTTP, XHR, WebSockets). It verifies if data reached the server, not just if a button was clicked.
Key capabilities
HTTP Status & Health Tracking
Monitor the vital signs of your outgoing data. Flow Monitor automatically alerts you to 404 Not Found, 500 Internal Server Error or 403 Forbidden responses that would otherwise go unnoticed by front-end trackers.
Header & metadata validation
Go beyond the payload. Verify that mandatory HTTP headers, such as content-type, cache-control and custom Auth tokens are present and correctly configured to ensure data security and compliance.
Payload inspection
Intercept the raw XHR and Fetch API requests. Validate that the JSON or Query String parameters being sent to your analytics end-points (like GA4 or Adobe) are perfectly formatted before they reach the server.