AWS Region Latency Tester

Rough browser-to-region round-trip times for the AWS regions listed here (as of October 2026). Includes connection setup, so treat the numbers as indicative.

Makes HTTPS requests to public AWS endpoints; your input is never sentOpen in workspace →

Region list as of October 2026, checked against the AWS Regions table; AWS adds regions over time, so newer ones may be missing. Regions you have not opted into still answer, but the AWS-side handling differs. Times include the TLS handshake on the first request and your browser's overhead, so run the test twice. The DevTools console may show failed-request noise: that is expected, the endpoints answer with an error but the timing is still measured.

Region	Name	Latency

Note: Latency is measured via HTTPS fetch to DynamoDB endpoints. Results are approximate round-trip times from your browser, not ICMP ping. CORS restrictions and cold starts may inflate first measurements.