Updated 2026-05-23
Some sites work and others do not
A connection can reach one destination while DNS, routing, or a specific service fails elsewhere.
Do not stop at "online"
OnlineCheck loading means this browser reached OnlineCheck. Nothing more. It does not prove Google, GitHub, Cloudflare-backed sites, or your work apps are reachable from here.
Use reachability results
Mixed reachability almost always points away from "device is fully offline" and toward DNS, routing, filtering, or a single service having a bad afternoon.