firestore.googleapis.com and *.firestore.googleapis.com
valdera.com and *.valdera.com
algolianet.com
algolia.com
T35E0N9F5Q-dsn.algolia.net
T35E0N9F5Q.algolianet.com
2. How to verify the application works.
Here is a browser-based diagnostic tool that pings required GCP services: https://debug-my.firebaseapp.com. Please open it in your browser and let it run through the test suite. The blocked services will be highlighted.
Credentials for an isolated test account can be shared with you over a call. We can use those to log in to the application and see if the basic functionality works correctly.