Ping / latency check
Measure round-trip time from your browser to three well-known servers.
Click Start test to measure round-trip time to three well-known servers. 10 samples per target.
Measurements are HTTP load time, not ICMP ping — numbers will be
slightly higher than a command-line ping, but relative
differences are accurate. A 5000 ms reading means the request
timed out (the target is unreachable or heavily slow).
About this tool
Measure round-trip time from your browser to three well-known servers — Google, Cloudflare, and GitHub — with 10 samples each. Because browsers don't have access to raw ICMP, the measurement is HTTP image load time, so numbers will run slightly higher than a command-line <code>ping</code>. The useful signal is the comparison: if all three are slow, your connection is the problem; if one is slow and the others are fine, that specific network is the problem. A 5000 ms bar means the request timed out.
Frequently asked questions
Why is this different from command-line <code>ping</code>?
Browsers can't send raw ICMP packets (the kernel-level protocol <code>ping</code> uses), so this tool measures HTTP image load time instead. That includes the TLS handshake, any server-side processing, and image decode — so readings will be noticeably higher than ICMP ping. But relative differences between targets and whether a target is reachable at all are still meaningful.
Why these three sites?
They each sit on a different major CDN / network (Google, Cloudflare, and Azure via GitHub), are globally distributed, serve a tiny favicon reliably, and allow cross-origin image loads. Testing all three gives you a rough picture of internet-wide responsiveness from your browser right now.
What does a 5000 ms bar mean?
That the request timed out — we cap each sample at five seconds so the test doesn't hang. Common causes: the target is genuinely unreachable from your network, a browser extension or firewall is blocking it, or the network is badly congested. Try again, or check the other targets to see if it's specific to one site.