Start with the connection that this browser actually uses: inspect its public exit, approximate region, IP-family paths and web-endpoint reachability. Jemdo CN and COM server checks are secondary reference only.
Public IP checks contact fixed diagnostic endpoints. Results are shown for this session and are not used to build a browsing profile.
VPNs, split tunneling, IPv4 and IPv6, carrier gateways and regional proxies can route individual destinations through different public exits.
It only means the fixed Steam web endpoint did not complete this browser's opaque request before the limit. CORS policy, extensions, VPN routing or the endpoint itself can affect it; it does not prove that Steam login, downloads or game servers are down.
No. They show outbound HTTP checks run from Jemdo's regional servers and are kept as a collapsed comparison reference. Your browser-side checks are the primary view of your own route.
No. It only confirms that the browser reached a fixed public endpoint. Game UDP paths, login state, NAT type and regional matchmaking require deeper native or server-side tests.