This file verifies that the host on which it is opened — and the browser's network path — can reach the Dfns platform. It issues only read requests. No signing, wallet, or mutating operation is performed. Tests run automatically on load.
Pass (green) — the test reached Dfns and got the expected response.
Check (yellow) — the network path is open, but something at the application layer is unexpected (typically a credential rejection, or browser CORS blocking a response that the network itself delivered). This is not a connectivity problem and your IT team does not need to act on it.
Fail (red) — the network is blocking the request before any response comes back. Capture this page (screenshot, or Copy report to clipboard) and forward it with the host name and approximate timestamp to your IT or network security team. The most common causes are TLS-decrypting proxies, category-based web filters, and missing firewall rules. Refer to the Dfns “Network Connectivity Requirements” guide for remediation.