Ping Test
Latency is the wait before anything starts to happen, and jitter is how much that wait jumps. We time web requests to the nearest test server, so this is not an ICMP ping.
Ping Test
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How this test works
The page sends 10 small web requests to the nearest Cloudflare server and times each answer, using 20 requests in Full mode. The time comes from the browser's own request timing when that is available, and from the wall clock otherwise. It measures HTTP latency, not ICMP ping.
How to read the result
Latency is the middle value of the answers that arrived, so one slow answer does not decide the result. Jitter is how much the time changes from one request to the next, on average. A request that gets no answer is counted as failed, not as 0 ms.
What is typical
On the home page, latency above 100 ms or jitter above 30 ms raises a flag against the word, and latency above 200 ms or jitter above 60 ms raises a stronger one. Latency above 300 ms or jitter above 100 ms is severe and makes the word Stuck.