Global Latency Test
Measure your round-trip time to AWS cloud regions across US, Europe, and Asia-Pacific. Find which region gives you the lowest latency for your app or database deployment.
What is latency and why does it matter?
Latency (or ping) is the time it takes for a network request to travel from your device to a server and back — measured in milliseconds (ms). Lower latency means faster response times for your users. When choosing a cloud region for your application, database, or API, picking the region with the lowest latency to your primary user base can dramatically improve performance.
How to choose the right AWS region
Run this latency test from your development machine and from the locations where your users are. If you're serving users in Western Europe, EU Ireland (eu-west-1) or EU Frankfurt (eu-central-1) will typically give the best results. For users in Southeast Asia, Singapore (ap-southeast-1) is usually optimal.
What is a good ping for cloud services?
- Under 80ms — Excellent. Suitable for real-time applications, databases, and APIs.
- 80–200ms — Acceptable. Fine for most web applications.
- Over 200ms — High latency. Users will notice delays in interactive applications.