Best latency tools

Netflix's browser speed test with loaded-latency details

Follow a network route while collecting ping statistics

Compare browser latency checks for game regions

Graph ping responses directly in a terminal

Find ping tests for common online games

Chart network paths and connection history

Keep latency distributions and loss history across network paths

A Windows ping utility with high-resolution timing and graphs

Benchmark throughput and end-to-end network latency

Browser measurements of download, upload and ping

Throughput and responsiveness tests from the continuing iperf2 project

Graph and alert on several network endpoints

Probe an HTTP server repeatedly from the command line

Measure socket latency distributions and behavior under load

Compare a network path through tables, graphs and history

Measure several network-performance dimensions with one tool

Inspect latency, HTTP connectivity and routes from remote locations

Measure connection performance through Ookla