SpeedXG
Packet Loss Test
Measure how many timed probes fail to return. High loss causes lag spikes, robotic calls and rubber-banding in games.
What packet loss means
Packet loss is data that never arrives. This browser test uses HTTP probes, not ICMP ping, so it is a practical path check rather than a router-level traceroute.
What is a good packet loss result?
0% is the goal. Under 1% is usually playable. 2%+ on a wired connection is a problem. Wi-Fi, VPNs and congested mobile networks raise loss even when Mbps looks fine.
FAQ
Is this a real ICMP ping?
Browsers cannot send ICMP. SpeedXG times many small HTTP requests. Failed or timed-out probes count as loss.
Why do I see loss only on Wi-Fi?
Interference and retries drop frames. Compare Ethernet. If wired is clean, fix the wireless hop.