Netlora

Netlora is a free, browser-based internet diagnostic that measures the connection quality metrics standard speed tests skip. When your internet feels slow despite a fast speed test result, the cause is almost always bufferbloat — excess queuing delay that only appears when the connection is under real load. A standard speed test measures peak throughput and idle ping. Both numbers are accurate. Neither tells you what happens to your latency when someone in the house starts a download, a backup runs in the background, or you're on a call while streaming. The metrics Netlora measures include loaded latency, which is your ping while the connection is saturated, jitter, which is the variance in round-trip latency across consecutive probes, and packet loss, which is estimated from the fraction of HTTP probes that time out or fail. The complete measurement methodology is documented on the Netlora methodology page. Netlora stores test results by 8-character random ID only. No account is required. No IP addresses are stored.