How did you choose which datacenters to include? For example, eu-south-2 (Spain) is missing.
The reason I know is because I worked on a project that required latency to be under 30ms between datacenters, and we had to use eu-west-1 (Ireland) and eu-south-2.
Turns out that latency is closer to 42ms, mainly because there are no undersea cables between Ireland and the continent (they only go to England, then they have to route across England to get to a cable to the content).
> How did you choose which datacenters to include? For example, eu-south-2 (Spain) is missing.
At the bottom of the page it says: «Data scraped from CloudPing», with the CloudPing dataset linked through. If you click through to CloudPing, you won't find «eu-south-2» in the dataset.
Author here - I just used what was available on https://www.cloudping.co, which is certainly missing a few. The CloudPing GitHub repo has not had a code change in 4 years. Maybe a few new regions have popped up since it was last actively worked on.
The reason I know is because I worked on a project that required latency to be under 30ms between datacenters, and we had to use eu-west-1 (Ireland) and eu-south-2.
Turns out that latency is closer to 42ms, mainly because there are no undersea cables between Ireland and the continent (they only go to England, then they have to route across England to get to a cable to the content).