Analytics version or SDK is reasonably current

Google Universal Analytics (UA- tracking IDs) was permanently shut down on July 1, 2024. Any codebase still referencing analytics.js or a UA-XXXXXXXX-X tracking ID is collecting zero data — the service is gone. Operators may not notice for months because the UI still renders and no error is thrown. Beyond UA, running analytics SDKs two or more major versions behind current (CWE-1357) means missing security patches and compatibility fixes, and relying on deprecated API surfaces that platforms remove without warning.

Replace any Universal Analytics tracking ID with a GA4 measurement ID in your analytics initialization:

// Before (no longer collecting data — UA was shut down July 1, 2024):
gtag('config', 'UA-XXXXXXXX-1')

// After (GA4):
gtag('config', 'G-XXXXXXXXXX')

For other analytics packages, run npm outdated to surface packages two or more major versions behind. Check the platform's migration guide before upgrading — analytics SDK major versions frequently include breaking changes to initialization options and event schemas. Update package.json and re-test your key tracking events after upgrading.