AWS latency check.
Round-trip latency from your browser to every AWS region. Hit in parallel, median ms reported. Click rerun for a fresh measurement.
AWS latency check — browser-measured RTT to all 12 AWS regions using DynamoDB regional healthcheck endpoints.Measured live from your browser to 0 AWS region endpoints. Three samples per region in parallel, fetch(no-cors) + median ms reported, four-second timeout.
AWS · 0 regions
// endpoint used
dynamodb.<region>.amazonaws.com returns a tiny ~40-byte healthy: ... response on GET / — the same low-overhead endpoint used by other public AWS latency probes. Hit with fetch(no-cors).
// what it measures
Per region: 4 sequential samples, first discarded as TLS warm-up, median of the remaining 3 reported. Numbers approximate TCP + TLS + first-byte time — a few ms higher than raw ping, but the relative ordering between regions is accurate.
// what it doesn't
We don't persist runs, send your IP anywhere, or compare inter-region paths. For serious benchmarking, mtr beats browser fetch timing every time.