If you're leveraging an Edge geolocation feature and serve different behavior depending on the request origin, you want to guarantee your application doesn't break for some users over time.

Learn how to use Checkly to monitor and test your Vercel Edge functions from different global locations and get alerted when your Edge handling broke.

Resources:

Lee Robinsons Tweet: https://twitter.com/leeerob/status/1546904998621192192
Edge setup source Code: https://github.com/vercel-labs/react-on-the-edge